KR101066479B1 - Method for Forming Seal Pattern and method for Manufacturing Tiling Liquid Crystal Display Device with the Same - Google Patents

Abstract

The present invention relates to a seal pattern forming method for securing straightness and forming a seal pattern without invading the display area, and to a method of manufacturing a tiling liquid crystal display device using the same. Preparing a substrate in which a non-display area is defined outside the display area, forming an array in the display area of the substrate, and predetermined intervals for each side forming the edge of the display area in the non-display area, respectively. And dispensing a straight seal line from one end of the substrate to the other end of the substrate.

Tiling liquid crystal display, seal pattern, dam pattern, corner (corner), straightness, display area, non-display area

Description

Method for Forming Seal Pattern and Method for Forming Tiling Liquid Crystal Display Using Method {Method for Forming Seal Pattern and Method for Manufacturing Tiling Liquid Crystal Display Device with the Same}

1 is a process flowchart showing step by step a manufacturing process of a liquid crystal cell for a general liquid crystal display device

2 is a view showing a seal pattern manufacturing process using a screen printing method

3 is a view showing a seal pattern manufacturing process using the dispensing method

4 is a cross-sectional view of a conventional liquid crystal display device.

5 is a plan view illustrating a conventional four-sided tiling liquid crystal display device.

6 is an enlarged plan view of a region P of FIG. 5;

7 is a view showing a seal pattern forming method according to a first embodiment of the present invention

8 is a view showing a seal pattern forming method according to a second embodiment of the present invention

9 is an enlarged plan view of region S of FIGS. 7 and 8;

10 is a view showing a state in which the dam pattern is applied to both sides of the seal pattern of FIG.

11 is a structural cross-sectional view taken along line II ′ of FIG. 10.

12 is a view showing another embodiment in which the dam pattern is applied to both sides of the seal pattern of FIG.                 

13 is a view showing a seal pattern forming method according to a third embodiment of the present invention

14 is a view showing a seal pattern forming method according to a fourth embodiment of the present invention

15 is a plan view showing a four-sided tiling liquid crystal display device to which the seal pattern forming method of the present invention is applied.

FIG. 16 is an enlarged view of a region P of FIG. 15.

Description of the Related Art [0002]

150: dispenser 170: substrate

180a, 180b, 180c, 180d, 180e: seal pattern

181a, 181b, 181c, 181d: surplus seal pattern material

200: substrate disc 210a ~ 210h: seal pattern

220: seal pattern 222: surplus seal pattern material

230a: first dam pattern 230b: second dam pattern

240b: inner dam pattern 242a: first outer dam pattern

242b: second outer dam pattern 250: first substrate

260: second substrate 270: substrate

271 seal pattern 280 substrate disc

Seal pattern: 281a, 281b, 281c, 281d

Seal pattern: 290a, 290b, 290c, 290d

300a, 300b, 300c, 300d: liquid crystal panel

301a, 301b, 301c, and 301d: gate driver                 

302b, 302b, 302c, 302d: source driver

310a, 310b, 310c, 310d: inner dam pattern

311a, 311b, 311c, 311d: outer dam pattern

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display, and more particularly, to a method of forming a seal pattern without invasion of a display area and a method of forming a tiling liquid crystal display using the same.

(PDP), Electro Luminescent Display (ELD), Vacuum Fluorescent (VFD), and the like have been developed in recent years in response to the demand for display devices. Display) have been studied, and some of them have already been used as display devices in various devices.

Among them, LCD is the most widely used as the substitute for CRT (Cathode Ray Tube) for mobile image display device because of its excellent image quality, light weight, thinness, and low power consumption. In addition to the use of the present invention has been developed in various ways such as a television and a computer monitor for receiving and displaying broadcast signals.

In order to use such a liquid crystal display as a general screen display device in various parts, it is a matter of how high quality images such as high definition, high brightness and large area can be realized while maintaining the characteristics of light weight, thinness and low power consumption. can do.

A general liquid crystal display device may be largely divided into a liquid crystal panel displaying an image and a driving unit for applying a driving signal to the liquid crystal panel, wherein the liquid crystal panel includes first and second glass substrates bonded to each other with a predetermined space; It consists of a liquid crystal layer injected between said first and second glass substrates.

The first glass substrate (TFT array substrate) may include a plurality of gate wires arranged in one direction at a predetermined interval, a plurality of data wires arranged at regular intervals in a direction perpendicular to the respective gate wires, A plurality of pixel electrodes formed in a matrix form in each pixel region defined by crossing gate lines and data lines, and a plurality of thin film transistors switched by signals of the gate lines to transfer signals of the data lines to each pixel electrode. Is formed.

The second glass substrate (color filter substrate) includes a light shielding layer for blocking light in portions other than the pixel region, an R, G, and B color filter layers for expressing color colors, and a common electrode for implementing an image. Is formed.

The driving principle of the general liquid crystal display device uses the optical anisotropy and polarization property of the liquid crystal. Since the liquid crystal is thin and long in structure, the liquid crystal has directivity in the arrangement of molecules, and the direction of the arrangement of molecules can be controlled by artificially applying an electric field to the liquid crystal.                         

Therefore, when the molecular arrangement direction of the liquid crystal is arbitrarily adjusted, the molecular arrangement of the liquid crystal is changed, and light is refracted in the molecular arrangement direction of the liquid crystal by optical anisotropy, thereby representing image information.

On the other hand, in recent years, in accordance with the trend that the liquid crystal display device becomes larger in area, there is a limit to the size of the unit panel can be increased, when implementing a large area liquid crystal display device, by tiling a plurality of panels A tiling liquid crystal display device which performs one display by arranging has been proposed.

Hereinafter, a conventional liquid crystal display and a tiling liquid crystal display will be described with reference to the accompanying drawings.

1 is a process flowchart showing a process of manufacturing a liquid crystal cell for a general liquid crystal display step by step.

In a typical liquid crystal cell manufacturing process for a liquid crystal display device, as shown in FIG. 1, first, a first substrate having a thin film transistor and a pixel electrode connected to the thin film transistor, and a second substrate having a color filter and a common electrode formed in an area covering the color filter. It is provided (st1).

Subsequently, first and second alignment layers are formed (st2) in regions covering pixel electrodes and common electrodes of the first and second substrates, respectively.

This step includes coating and rubbing of the polymer thin film. The polymer thin film is commonly referred to as an alignment film, and should be formed to have a uniform thickness over the first and second substrates, and rubbing should also be uniform.

The rubbing is a main process of determining the initial alignment direction of the liquid crystal. The rubbing of the alignment layer enables the normal liquid crystal to be driven and has a uniform display characteristic.

In general, a polyimide-based material which is an organic material is mainly used as the polymer thin film material.

Subsequently, a seal pattern is formed on any one of the first and second substrates (st3).

The seal pattern in the liquid crystal cell has two functions of forming a cell gap for injecting the liquid crystal and preventing leakage of the injected liquid crystal. The seal pattern is formed in a sealant made of a heat curable or ultra violet (UV) curable resin. Use a mixture of glass fibers.

Screen printing and dispensing methods are used as a method of forming the seal pattern.

Subsequently, a spacer st4 is spread on any one of the first and second substrates.

Since the spacers are used for precisely and uniformly maintaining cell gaps between the first and second substrates, the spacers should be uniformly distributed in this step. It can be divided into a wet dispersion method and a dry dispersion method in which only spacers are dispersed. At this time, the spacer is a ball-shaped spacer, and in some cases, uniformity can be obtained by forming a column spacer fixed to a predetermined position.

For example, the seal pattern and the spacer may be formed on different substrates, and the seal pattern may be formed on the second substrate having a relatively flattening property, and the spacer may be formed on the first substrate forming the lower substrate.

Next, the first and second substrates are bonded (st5). At this time, the bonding process of the first and second substrates is determined by a margin given during the design of each substrate. When the bonding error range of the two substrates is out of the range, light leaks out and the driving of the liquid crystal cell is desired. Since image quality characteristics cannot be expected, a precision of several micrometers is usually required.

Then, the two bonded substrates are cut (st6) in units of cells.

The cell cutting process includes a scribe process of forming a cutting line on a surface of a substrate using a diamond pen having a hardness higher than that of a glass substrate, and a brake process of applying a force to cut the substrate.

Subsequently, a liquid crystal process st7 is performed between the two substrates cut in units of cells through a liquid crystal.

The liquid crystal cell has a gap of several μm in an area of several hundred cm 2. Therefore, as a method of effectively injecting liquid crystal into a cell of such a structure, a vacuum injection method using a pressure difference between the inside and outside of the cell is most widely used. On the other hand, in recent years, a method of dropping a liquid crystal onto one substrate by a liquid crystal dropping method so as to easily form a large-area liquid crystal display device and then joining the two substrates is also known.                         

Although not shown, after the liquid crystal is injected, a process of encapsulating the liquid crystal inlet is continued, and then a polarizing plate is attached to the outside of the liquid crystal cell selected through quality inspection, and the driving circuit is connected to the liquid crystal display. This is followed by completion of the device.

Hereinafter, a general seal pattern forming method will be described.

2 is a view showing a seal pattern manufacturing process using a screen printing method.

As shown in FIG. 2, in the seal pattern manufacturing process using the screen printing method, a screen 12 having a predetermined pattern formed thereon is disposed on a substrate 10, and then a pattern on the screen 12 using a rubber stick 14. Is printed on the substrate 10 to form the seal pattern 16. At this time, the step of forming a liquid crystal injection hole 18 consisting of an open portion on one side of the seal pattern 16.

In more detail, in the present process, a sealant made of a thermosetting resin is printed on a substrate through the screen 12, and a solvent contained in the sealant for leveling is evaporated. And a drying step.

In practice, since the thickness value of the seal pattern 16 has a close relationship with the cell gap of the product, the uniformity of the thickness and height of the seal pattern 16 is a very important process control item.

The screen printing method described above has become the most common method at present because of the convenience of the process. However, the screen printing method has a disadvantage in that it is difficult to cope with the large area of the substrate.                         

In other words, a screen corresponding to the size of the substrate is required, and a sealant-containing solvent must be sprayed on the entire surface of the screen, so that even if a seal pattern is formed on a very small portion corresponding to the outer region of the substrate, There is much quantity, and the amount of sealant discarded after formation of a seal pattern is large, and it is difficult to respond to a large area from a material use viewpoint.

In order to make up for the disadvantages of the screen printing method described above, a scanning method of dispensing, which can selectively form a seal pattern only at a desired position, is gradually used.

3 is a view showing a seal pattern manufacturing process using the dispensing method.

As shown in FIG. 3, in the seal pattern manufacturing process using the dispensing method, the substrate 22 is disposed on the stage 20, and the seal pattern 26 is formed on the substrate 22 using the dispenser 24. will be.

The dispensing method uses the same principle as an injector to fill a dispenser 24 with a sealant (not shown) and to move the table 20 or dispenser 24 to a desired width and thickness at a predetermined pressure. Thus, the seal pattern 26 is formed on the substrate 22.

Meanwhile, a predetermined amount of glass fibers having a pattern retention property are mixed with the sealant material forming the seal pattern in order to serve as a support for maintaining a gap between the two substrates in addition to the resin component.

However, when the seal pattern manufacturing process is performed using a sealant mixed with glass fibers, bubble defects are likely to occur in a blending process for mixing the glass fibers in the sealant. As the life of the nozzle part of the dispenser is shortened, there is a problem that the nozzle of the dispenser needs to be replaced periodically.

4 is a cross-sectional view of a conventional liquid crystal display.

As shown in FIG. 4, in the conventional liquid crystal display, the first and second substrates 30 and 50 are disposed to face each other, and the gate electrode 32 and the semiconductor layer ( 34, a thin film transistor T including a source electrode 36 and a drain electrode 38 is formed, and a drain contact hole 40 partially exposing the drain electrode 38 in a region covering the thin film transistor T. The protective layer 42 which has () is formed. A pixel electrode 44 connected to the drain electrode 38 is formed on the passivation layer 42 through the drain contact hole 40, and a first alignment layer 46 is formed in the region covering the pixel electrode 44. It is.

In addition, a black matrix 52 is formed on an inner side surface of the second substrate 50 at a position overlapping the thin film transistor T of the first substrate 30 described above, and includes a black matrix 52. The color filter layer 54 is formed on the 2nd board | substrate 50, and the common electrode 56 and the 2nd alignment film 58 are formed in order on the color filter layer 54. FIG.

The first and second alignment layers 46 and 58 are positioned in the display area I defined as an area for implementing a screen, and the pixel electrode 44 and the common electrode 56 are not shown, In the electrically connecting portion, the non-display area II may be extended.

A seal pattern 60 is formed on the outer side of the display area I of the first and second substrates 30 and 50 to bond the two substrates together, and a liquid crystal layer 70 is formed inside the seal pattern 60. It is

FIG. 5 is a plan view illustrating a conventional four-side tiling liquid crystal display, and FIG. 6 is an enlarged plan view of a region P of FIG. 5.

As shown in FIG. 5, a conventional four-sided tiling liquid crystal display device is tiling in regions A, B, C, and D so that the plurality of panels 100a, 100b, 100c, and 100d contact each other. To place it. In this case, the plurality of panels 100a, 100b, 100c, and 100d are provided with gate drivers 81a, 81b, 81c, and 81d and source drivers 82a, 82b, 82c, and 82d at outer portions, respectively. Controlled by a controller (not shown), a plurality of panels 100a, 100b, 100c, and 100d formed in contact with each other perform one display.

For example, the 1st panel 100a formed in area A is demonstrated.

A thin film transistor array is formed in a display area (inside dotted line area) of the first panel 100a, and a first lower substrate in which a first gate driver 81a and a first source driver 82a are formed in a non-display area. 70a) and a liquid crystal layer formed between the first upper substrate 80a and the first upper substrate 80a and the first lower substrate 70a corresponding to the thin film transistor array to form a color filter array. )

Like the first panel 100a, the second panel 100b, the third panel 100c, and the fourth panel 100d are formed, and portions of the panel where the driving unit is not formed are in contact with each other to form a four-side tiling liquid crystal display. Make up the device.                         

Here, the dotted line which is not described here indicates the display area (display area) inside the dotted line, and the outside of the dotted line indicates the non-display area, indicating the boundary between the display area and the non-display area.

As illustrated in FIG. 6, in the four-side tiling liquid crystal display device, in the P region where all four liquid crystal panels 100a, 100b, 100c, and 100d contact each other, corner portions of each liquid crystal panel meet. At this time, the shape of the seal pattern (61a, 61b, 61c, 61d) of each panel located in the P region is a rounding (rounding) shape.

In this case, the formation process of a seal pattern does not break between sides, but is formed once. That is, after the dispenser contacts the substrate, the seal line is drawn in a straight line on one side, and then, in order to form the seal line on the next side, the dispenser or the stage on which the substrate is mounted is turned in the direction of the dispenser. Continue drawing the seal line for the next side so that the next side corresponds, and at the edge (corner) located between one side and the next side, the dispenser or stage is in contact with the substrate at the same time. The dispenser will show a rounded seal line.

As described above, after forming a seal line having a rounded shape at the corners, when the two substrates are bonded together, the seal lines are spread to both sides by a predetermined interval after the bonding, and thus the seal pattern is defined as a seal pattern at the corners. As shown in FIG. 6, a phenomenon that penetrates into the display area may occur.

 However, the above-described conventional liquid crystal display and tiling liquid crystal display have the following problems.

The seal pattern of the conventional liquid crystal display is formed by dispensing or printing once per unit panel.

However, in the dispensing method mainly used for a large area, four sides have straightness when drawing, but after the dispenser draws on a predetermined side, the dispenser draws on a corner between sides to pass the next side. When corresponding, the stage on which the dispenser or substrate is mounted is turned, at which time a round seal line is drawn at the corner from the dispenser.

In this case, a predetermined amount of the rounded seal pattern may flow into the display area of the liquid crystal panel, and thus, the seal line entering the display area may react with the liquid crystal in the display area to cause an abnormality in display.

As described above, when a plurality of liquid crystal panels drawn with a seal line are joined by one dispensing method to form a tiling liquid crystal display device, regions that act as a non-display area including a seal pattern at the panel-to-panel joint are continuous. There is a risk of being observed in the seam.

In fact, before joining the panels, a process of cutting the sides of each panel to be joined to a predetermined width is added. However, the diagonal direction of the area adjacent to the corners of the panels is such that the seal pattern drawn in a round shape at each corner becomes spreadable in the process of bonding the two substrates, so that it is further introduced into each display area, and the straightness at each side of the liquid crystal panel is obtained. The phenomenon in which the non-display area is further increased compared to the other parts having a, has a high risk of being observed as a seam.

Disclosure of Invention The present invention has been made to solve the above problems, and provides a method of securing a straightness, forming a seal pattern without invading a display area, and a method of forming a tiling liquid crystal display device using the same.

The seal pattern forming method of the present invention for achieving the above object comprises the steps of preparing a substrate having a display area in the center and a non-display area outside the display area, and forming an array in the display area of the substrate And dispensing a straight seal line from one end of the substrate to the other end of the substrate at a predetermined interval from each side forming an edge of the display area in the non-display area. have.

The sealing line adjacent to one side of each edge forming the edge of the display area is dispensed with an opening of a predetermined interval, and the sealing lines adjacent to the other side are continuously discharged from one end of the corresponding side to the other end. Dispensing.

Seal lines formed corresponding to each edge forming the edge of the display area are continuously dispensed from one end of the corresponding side to the other end.

In the non-display area, a first dam pattern is further formed inside the seal line and a second dam pattern is formed outside.

The second dam pattern is removed at an edge where the horizontal seal line and the vertical seal line cross each other.

In addition, the seal pattern forming method of the present invention for achieving the same object is a first step of preparing a substrate having a display area in the center and a non-display area defined outside the display area, and forming an array in the display area of the substrate A second step of attaching a dispenser to one end of the display area adjacent to one edge of the display area; and a step of one side adjacent to the one side of the display area using the dispenser And a fourth step of dispensing a straight seal line to the other end and a fifth step of redirecting the dispenser or substrate at a corner outside between the one side and the next side.

Dispensing the seal line in succession of the third and fourth steps, respectively, adjacent to the corresponding side with respect to each other side forming the edge of the display area.

The seal line on the substrate, which is formed by the change of direction of the fourth step, is formed in a '4' shape at an outer edge of the edge between the one side and the next side.

In addition, a method of forming a seal line of a liquid crystal panel for achieving the same purpose includes defining a plurality of display regions spaced apart from each other on a disc, forming an array in each of the display regions, and forming an array of adjacent arrays on the disc. And a step of forming a seal pattern by dispensing a straight line in the direction of the other end from the one end of the disc at a predetermined interval from the sides of the same line among edges surrounding the edge of the display area. have.

In the forming of the array, a first dam pattern is further formed inside the portion where the seal pattern is to be formed, and a second dam pattern is formed outside.

The second dam pattern is removed at an edge where the seal line in the transverse direction and the seal line in the vertical direction cross each other.

In addition, the method of forming a seal pattern according to the present invention for achieving the same object, defining a plurality of display areas spaced apart from each other on a disc, forming an array in each display area and each of the arrays adjacent to each other on the disc In order to form a seal pattern by dispensing in a straight line from one end to the other end of the side surrounding the edge of the display area, and dispensing by dispensing at the outer edge of the edge between the predetermined side and the next side. It is characterized by including the steps.

The change of direction at the outer edge of the one side and the next side is made of '4' shape.

In the forming of the array, a first dam pattern is further formed inside the portion where the seal pattern is to be formed, and a second dam pattern is formed outside.

The second dam pattern may be removed at an edge where the seal line in the horizontal direction and the seal line in the vertical direction cross each other.

In addition, the manufacturing method of the tiling liquid crystal display device of the present invention for achieving the same object is to prepare a plurality of pairs of the first substrate and the second substrate having a display area at the center and a non-display area outside the display area, respectively; Forming a TFT array in a display area of the first substrates, and forming a color filter array in the display area of the second substrates, and a ratio of any one of the pair of first and second substrates. Dispensing a straight seal line from one end of the substrate to the other end of the substrate at predetermined intervals from each side forming the edge of the display area, respectively; Forming a spacer in a display area of one of the substrates, and bonding the array of the first and second substrates of each pair to face each other to form a plurality of liquid crystal panels; And forming a predetermined side of the non-display area of each liquid crystal panel, and bonding each liquid crystal panel using a predetermined side of the liquid crystal panel as a bonding site with another liquid crystal panel. There is another feature to this.

When the TFT array process is performed on the first substrate, a first dam pattern is further formed inside the region where the seal pattern is to be formed, and a second dam pattern is formed outside.

Here, the second dam pattern is removed at the edge where the seal line in the transverse direction and the seal line in the vertical direction cross.

Alternatively, when the color filter array process is performed on the second substrate, a first dam pattern is further formed inside the region where the seal pattern is to be formed, and a second dam pattern is formed outside.

At this time, the second dam pattern is removed at an edge where the seal line in the horizontal direction and the seal line in the vertical direction cross each other.

And after forming the array on the first and second substrates of each pair, the liquid crystal between any one of the first and second substrates of the respective pairs. It further comprises the step of dropping onto the substrate.

Alternatively, the method may further include injecting a liquid crystal between each pair of the first and second substrates after the process of bonding the first and second substrates of each pair.

In addition, the tiling liquid crystal display device of the present invention for achieving the same object comprises the steps of preparing a plurality of pairs of the first substrate and the second substrate having a display area at the center and a non-display area outside the display area, respectively; Forming a TFT array in a display area of the first substrates, and forming a color filter array in a display area of the second substrates, and forming a TFT array in a non-display area of any one of the pair of first and second substrates. Forming a seal pattern by dispensing in a straight line from one end to the other end adjacent to a predetermined side of the edge forming the edge of the display area, and dispensing by dispensing at an outer edge of the edge between the predetermined side and the next side; Dispensing a straight seal line from one end of the substrate to the other end of the substrate at a predetermined interval apart from each other; Forming a spacer in a display area of one of the first and second substrates of the substrate, bonding the array of the first and second substrates of the pair to face each other to form a plurality of liquid crystal panels; Grinding a predetermined side of the non-display area of each of the liquid crystal panel and bonding each liquid crystal panel using the predetermined side of the liquid crystal panel as a bonding site with the other liquid crystal panel. There is this.

When the TFT array process is performed on the first substrate, a first dam pattern is further formed inside the region where the seal pattern is to be formed, and a second dam pattern is formed outside.

The second dam pattern is removed at an edge where the seal line in the transverse direction and the seal line in the vertical direction cross each other.                     

When the color filter array process is performed on the second substrate, a first dam pattern is further formed inside the region where the seal pattern is to be formed, and a second dam pattern is formed outside.

The second dam pattern is removed at an edge where the seal line in the transverse direction and the seal line in the vertical direction cross each other.

After forming the array on the first and second substrates of each pair, the liquid crystal is transferred to any one of the first and second substrates of each pair between the step of bonding the first and second substrates of each pair. It further comprises the step of dropping.

And injecting liquid crystal between the pair of first and second substrates after the bonding of the first and second substrates of each pair.

Hereinafter, the seal pattern forming method of the present invention with reference to the accompanying drawings in detail as follows.

7 is a view showing a seal pattern forming method according to a first embodiment of the present invention.

The seal pattern forming method according to the first embodiment of the present invention shown in FIG. 7 is a seal pattern forming method corresponding to a unit panel, and at one end of each of the four sides of the substrate 170 constituting the liquid crystal panel, respectively The seal lines 180a, 180b, 180c, 180d, and 180e are dispensed in the straight direction.

The one substrate 170 may be a lower substrate on which a TFT array is formed, or an upper substrate on which a color filter array is formed, and the seal lines 180a, 180b, 180c, 180d, 180e) are formed. In fact, for convenience, the seal lines 180a, 180b, 180c, 180d, and 180e are mainly formed on the upper substrate having flatness rather than the lower substrate.

In this case, each of the upper and lower substrates has a display area defined at its center to form a color filter array and a TFT array, respectively, and a non-display area is defined outside the display area.

The seal lines 180a, 180b, 180c, 180d, and 180e are formed in the non-display area in a shape surrounding the display area.

Here, although the seal pattern is defined as a shape having a liquid crystal injection hole (180a and 180b between the opening) in the substrate 170, this is for the case that the liquid crystal injection method is applied, the substrate to which the liquid crystal dropping method is applied Without the liquid crystal injection hole, each of the four sides is continuously formed and forms a seal pattern having continuous straightness (in this case, 180a and 180b are connected in a straight line without an opening and formed in one seal pattern like the other sides).

Therefore, as shown in FIG. 7, when the substrate 170 is a substrate applied to the liquid crystal injection method, when the seal lines 180a and 180b having the liquid crystal injection hole are formed on one side, the number of times of dispensing on the corresponding side is provided. Is increased once, and a total of five dispensing defines the seal pattern of the substrate.

Although not shown, when the substrate 170 is a substrate applied to the liquid crystal dropping method, the number of dispensing proceeds from the substrate 170 is four times, one for each side.                     

As described above, in the seal pattern forming method according to the first embodiment of the present invention, the dispenser 150 corresponds to a predetermined side of the substrate 170 in order to maintain the straightness of the seal pattern. After the sides are drawn in a straight line, the dispenser 150 is spaced apart from the substrate 170, and then the substrate 170 or the dispenser 150 is moved to move the dispenser to the next side of the substrate 170. After 150 is matched, it draws linearly about the next side. That is, since the substrate 170 is a substrate forming a general liquid crystal panel and has a rectangular shape having four sides, the dispensing 150 for drawing the seal lines 180a, 180b, 180c, 180d, and 180e is Dispensing is performed four times for each of four sides of each substrate, or five dispensing is performed when there is a liquid crystal injection hole on one side.

On the other hand, when such a liquid crystal panel forms a tiling liquid crystal display device, as shown in FIG. 7, the side at which the bonding is performed is ground, thereby feeling as a seam area even though the non-display area is doubled at the junction portion. Do not lose.

Although FIG. 7 illustrates all of the grinding lines adjacent to each seal line, depending on how many liquid crystal panels are bonded to the tiling liquid crystal display device to be implemented and where the actual bonding portion is located in the panel. Optionally grinding may take place.

For example, when the liquid crystal display to be implemented is a four-sided tiling LCD, and the liquid crystal panel is positioned on the upper left side of the four-sided tiling liquid crystal display, the junctions are formed on the right side and the bottom. Since it is a side, it grinds adjacent to the outer edge of the seal pattern 180c, 180a, 180b of the side. In this case, the panel is in a state where the substrate 170 on which the seal line is formed and the substrate (not shown) opposed thereto are bonded to each other, and the liquid crystal injection hole is sealed with a seal pattern material after the liquid crystal injection. Here, the outer portion of the seal pattern that is not ground of the panel remains as it is after tiling, and is used as an area in which the driving unit of the panel is formed. On the other hand, when the liquid crystal panel is located on the upper right side, the bonding is performed on the left side and the lower side, and thus, adjacent to the outer edges of the seal patterns 180e, 180a, and 180b of the side are ground.

Hereinafter, a method of manufacturing a tiling liquid crystal display device using the liquid crystal panel to which the seal pattern forming method according to the first embodiment is described will be described.

First, a plurality of pairs of first and second substrates having a display area at the center and a non-display area outside the display area are prepared.

Subsequently, a TFT array is formed in the display areas of the first substrates, and a color filter array is formed in the display areas of the second substrates.

Subsequently, in a non-display area of any one of the pair of first and second substrates, each of the sides forming the edge of the display area is spaced apart from each other by a predetermined interval and is linear from one end to the other end of the substrate. Dispense seal lines.

Subsequently, spacers are formed in the display area of any one of the pair of first and second substrates. In this case, both the ball spacer and the column spacer can be used as the spacer. The ball spacers are formed through a scattering process on one of the upper and lower substrates after the array process of each of the upper and lower substrates, and the column spacer forming process is performed together through patterning during the color filter array process of the upper substrate.

Subsequently, the arrays of the first and second substrates of each pair are bonded to face each other to form a plurality of liquid crystal panels.

Next, a predetermined side of the non-display area of each liquid crystal panel is ground.

Subsequently, each liquid crystal panel is bonded using the predetermined side on which the liquid crystal panel is ground as a bonding site with the other liquid crystal panel.

On the other hand, in the case of liquid crystal dropping, the liquid crystal layer is formed by dropping a liquid crystal from one substrate after an array process, or in the case of forming a plurality of liquid crystal panels in the case of liquid crystal injection, the liquid crystal is injected, It is made by encapsulation.

Herein, in the case of the liquid crystal dropping method, the liquid crystal is dropped onto the array of the upper substrate or the lower substrate at the time of forming a seal line or at a predetermined interval spaced apart from the four sides forming the edge of the display area without a specific opening. The upper and lower substrates are bonded together. In this case, since there is no opening in the seal line itself, the sealing step is unnecessary after the liquid crystal dropping and bonding.

8 is a view showing a seal pattern forming method according to a second embodiment of the present invention.

According to the seal pattern forming method according to the second embodiment of the present invention, as shown in FIG. 8, when a plurality of substrates are defined corresponding to the substrate original plate 200, the substrate original plate ( It relates to a method of forming a seal pattern in 200).

First, the substrate regions (①, ②, ③, ④) on which the substrate of the same size is to be formed on the substrate master plate 200 are defined. After the non-display area is defined on the outside, a process of forming a plurality of arrays in the display area is performed. At this time, the array process refers to a TFT array or a color filter array process.

Here, an example in which the substrate having the same size is formed on the substrate original plate 200 is that, in the first embodiment of the present invention, when the linear dispensing is performed on each side of the substrate, the number of dispensing is repeated a plurality of times. This is to highlight the effect to reduce this.

In some cases, substrates of unequal size may also be formed, but in this case, it is difficult to obtain other effects in the second embodiment of the present invention, in which each substrate region is hardly located on the same line and the number of dispensing is reduced.

Subsequently, when adjacent sides of each array are on the same line in the substrate original plate 200 on which the plurality of arrays are formed, the same is drawn by drawing one straight line from one end to the other end of the substrate original plate 200. Ensure that the seal pattern is formed at one time on the sides of the line. Therefore, when a plurality of panels are formed on the substrate original plate in a straight line, a plurality of panels are formed on the substrate disc, which is formed by dispensing each side of the substrate to form a seal pattern. Since it is formed at one time, the number of dispensing can be reduced, saving time when forming the seal pattern.                     

In the second embodiment of the present invention, the dispensing of the seal line is performed by drawing horizontal seal lines 210a, 210b, 210c, and 210d sequentially from the horizontal lower end, and sequentially from the right vertical end, 210e, 210f, 210g, 210h. The vertical seal line of is drawn.

Thus, in the second embodiment of the present invention, like the first embodiment, the substrate regions 200 are defined as rectangles, which are substrate regions between the seal lines 210a to 210h, respectively, in a straight line. The rounding of the seal lines 210a to 210h does not occur at the corners, so that even after spreading occurs at the corners of each of the seal lines 210a to 210h, the corners between the seal lines having straightness and the display area may be formed. There is a certain corner margin (corner margin) between the corners, thereby alleviating the phenomenon that the completed seal pattern penetrates the display area.

9 is an enlarged plan view of region S of FIGS. 7 and 8.

In FIGS. 7 and 8, a seal pattern having a shape adjacent to each side of the substrate is formed to improve straightness. However, like the S region, the horizontal seal line 180d and the vertical seal line 180c overlap each other. In the passing part, the seal line is dispensed twice, so that the seal line material may escape in all directions at the corner region (S region) when the upper and lower substrates are bonded. That is, the excess seal pattern materials 181a, 181b, 181c, and 181d may exit the area between the seal lines 180c and 180d based on the overlapping portions of the seal lines 180c and 180d with each other. Here, assuming that the excess seal pattern material is evenly escaped from the area between the seal lines, the amount to be introduced toward the display area is about 1/4 of the total amount of the excess seal pattern material.                     

Looking at this numerically, in the diagonal direction of the corner is formed to a width of about 2.4 times thicker than a single line, the expansion of the seal width of the edge is large. For example, when the width of the seal line in the horizontal direction or the width of the seal line in the vertical direction is 200 μm, the width is about 480 μm in the diagonal direction.

In this way, even if the seal width enlargement is large at the corner where the double overlap between the horizontal seal line 180d and the vertical seal line 180c occurs, the horizontal and vertical seal lines formed with straightness are formed once. The sealing line is spaced apart from the display area by a predetermined distance, and the edge of the sealing line may be formed away from the display area. Even after spreading occurs, the edge is expected to spread from the overlapping area of the seal line to the display area. Seal line patterning can be prevented from penetrating into the display area by separating the seal line by an expected spreading distance.

The outer region of the seal pattern may be bonded to the substrate on which the seal line is formed and the substrate opposite thereto, and then, after cutting the outer seal pattern along a dotted line, grinding may be performed to secure the straightness of the edge.

First, in the first and second embodiments, the seal lines are dispensed in a straight line, and have corner margins of predetermined intervals at the corner portions of the display area and the corner portions of the seal lines, and are stable compared to the prior art. As in the first and second embodiments, in the corner portion where the second seal line overlaps, a structure around the seal line is further formed as follows, so that the seal line material penetrates into the display area (pixel portion) side. It is reliably prevented.                     

FIG. 10 is a view illustrating a state in which dam patterns are applied to both sides of the seal pattern of FIG. 9, and FIG. 11 is a cross-sectional view taken along line II ′ of FIG. 10.

10 and 11, the first dam pattern 230a and the second dam pattern 230b are formed on the outside and the inside of the seal pattern 220 formed in a straight line with respect to each side.

The first and second dam patterns 230a and 230b are formed in an array process, and are mainly formed on the upper substrate 260 (color filter substrate). In this case, instead of patterning a separate material, the above-described structure (black matrix material) may be formed in the same process when the black matrix layer (not shown), the overcoat layer, and the column spacer are formed in the display area of the upper substrate 260. , The overcoat layer material and the column spacer material) are patterned to the same thickness as the gap between the upper and lower substrates to form the first and second dam patterns 230a and 230b.

In this case, since the seal pattern 220 is dispensed after the array process, the seal pattern 220 is drawn in an area between the first and second dam patterns 230a and 230b and after the upper and lower substrates 260 and 250 are bonded, Since the first and second dam patterns 230a and 230b are filled first, and the excess seal pattern materials 181a, 181b, 181c, and 181d exit in all directions, the width of the seal pattern 220 is greater than that of the first and second dam patterns 230a and 230b. The width between the two dam patterns 230a and 230b is uniformly defined to ensure uniformity of the width of the seal pattern 220, and the seal pattern material is less likely than that of the first and second embodiments. It enters inside the display area and has a more stable structure.

In addition, the dam patterns 230a and 230b have a better pattern retention than the seal pattern, and thus may act as a cushion against impact, thereby significantly reducing the use of glass fibers added to the seal pattern in addition to the sealant. Even if it is reduced or not used, a support force capable of maintaining the cell gap between the upper and lower substrates 260 and 250 is secured. Thus, the problems caused by the use of glass fibers can be improved.

Expanding the application of the first and second dam patterns 230a and 230b to the entire seal pattern may not only improve the uniformity of the seal but also minimize damage of the seal during the grinding process.

FIG. 12 is a view illustrating another embodiment in which dam patterns are applied to both sides of the seal pattern of FIG. 9.

As shown in FIG. 12, when the outer dam pattern is removed from the corner and formed as the first and second outer dam patterns 242a and 242b which are separated from each other on the adjacent side, the excess seal pattern material during dispensing at the corner Since 222 is pulled out, the seal pattern component penetrating into the display area can be adjusted to have almost no seal pattern component. In this case, the inner dam pattern 240b is formed adjacent to the edge surrounding the edge of the display area of the liquid crystal panel without being removed.

In this case, the seal pattern material 222 exiting to the corner portion is a portion that is removed during the grinding process at the junction of each panel for forming the tiling liquid crystal display, and has no influence on the display.

Changing the shape of the first and second outer dam patterns 242a and 242b is to move the spread center of the excess seal pattern material 222. This leaves only the edges of the outer dam patterns 242a and 242b among the inner and outer dam patterns surrounding the inside and the outside of the seal pattern 220, allowing the excess seal pattern material 222 to flow before curing, so that the seal pattern enters the display area side. This is to prevent the phenomenon in advance.

13 is a view showing a seal pattern forming method according to a third embodiment of the present invention.

As shown in FIG. 13, in the method of forming a seal pattern according to the third embodiment of the present invention, the drawing pattern is drawn on the substrate 270 at a time, and the seal pattern 271 is moved to the next side at a point farther than the edge of each side. Characterized in that the direction change for drawing.

To this end, first, a substrate 270 in which a display area is defined at the center and a non-display area is defined at the outside is prepared.

Subsequently, a TFT array or a color filter array is formed in the display area of the substrate 270.

Subsequently, in the shape surrounding the display area of the substrate, the non-display area is drawn beyond the edge of the next side from a predetermined side in the direction of the corresponding side, and then bent into a '4' shape to seal the seal pattern 271 of the next side. ), And in the same way, for the remaining sides, bend to the '4' shape at the outer edge of the corner, turn to the next side, and continuously form a seal pattern. In this case, when the next side is bent into a '4' shape at the edge of the corner, the shape is not necessarily limited to the '4' shape, and may be changed as long as the direction is changed at the edge.

At this time, as shown, when the substrate 270 is a substrate constituting a liquid crystal panel manufactured by the liquid crystal injection method, the start point and the end point are spaced apart from each other by a predetermined interval, the liquid crystal is injected in this space.

In the case of a substrate applied to a liquid crystal dropping system (not shown) (see FIG. 14), a starting point and an ending point coincide with each other, or a starting point starts at one edge of one side of four surrounding sides of the display area, and starts with the one side and the starting point. An end point is formed in the form of leaving the display area in a direction of advancing the predetermined side at the same corner portion of the adjacent predetermined side.

14 is a view showing a seal pattern forming method according to a fourth embodiment of the present invention.

As shown in FIG. 14, in the method of forming a seal pattern according to the fourth embodiment of the present invention, a plurality of seal patterns 281a, 281b, 282c, and 282d according to the third embodiment are formed on the substrate disc 280. It is done.

As in the above-described third embodiment, the drawing patterns are performed at one time for each substrate region defined in the substrate master plate 280, but the seal patterns 281a and 281b are moved to the next side at a point farther than the edge of each side. , 281c, 281d).

To this end, first, a display disc (280) in which a display area (①, ②, ③, ④) is defined in the center, and a plurality of substrates in which non-display areas (1, ②, ③, ④ and other areas are defined) are defined. Prepare.

Subsequently, TFT arrays or color filter arrays are formed in the display regions ①, ②, ③, and ④ of the substrate master 280, respectively. For example, when the substrate original plate 280 is a TFT array substrate original plate, a TFT array is formed in each display area, and when the substrate original plate 280 is a color filter array substrate original plate, each color filter array is formed. It is formed in the display area.

Subsequently, each of the display areas ①, ②, ③, and ④ of the substrate original plate is drawn in the direction of the side of the non-display area further beyond the edge of the next side from the predetermined side, and then '4'. 'Fold in a shape, draw the seal pattern of the next side, and in the same way, for the remaining sides, turn the' 4 'shape at the outer edge of the corner and change direction to the next side, and the seal pattern (281a, 281b, 281c, 281d).

In this case, when the substrate original plate 280 is a substrate original plate manufactured by a liquid crystal injection method, the start point and the end point of the drawing of the seal patterns 281a, 281b, 281c, and 281d are spaced apart from each other by a predetermined interval in each of the substrate areas. The liquid crystal is injected in the closed space.

On the other hand, in the case of a substrate disc applied to the liquid crystal dropping method, a start point and an end point coincide with each other, or a starting point starts at one edge of one side of four surrounding sides of each display area of the substrate disc, and is adjacent to the one side and the starting point. The end point is formed in the form of past the edge in the direction of the predetermined side in the same corner portion of the predetermined side.

In the case of the third and fourth embodiments described above, as described with reference to FIG. 12, the inner and outer dam patterns may be formed in the shape of exposing the outer edges of the edges in an array process in preparation for double overlapping of the seal patterns at the edges. have.                     

On the other hand, the substrate original plate 280, which has been dispensed with the seal pattern, is bonded to each other so that the substrate original plate and the opposite display area face each other, and then separated into unit panels by scribing and breaking. In this case, when the unit panel is used as one panel of the tiling liquid crystal display, grinding is performed on a portion to be bonded to another panel.

When manufacturing a tiling liquid crystal display device using the seal pattern formation method of this invention which concerns on 3rd, 4th embodiment mentioned above, it can manufacture by implementing the same process except the above-mentioned seal pattern formation method. Therefore, the dam patterns formed on the inside and the outside of the seal pattern may also be formed in the same shape, thereby obtaining the same effect.

Hereinafter, a tiling liquid crystal display device manufactured by using the seal pattern forming method according to the fourth embodiment will be described.

15 is a plan view illustrating a four-sided tiling liquid crystal display device to which the seal pattern forming method of the present invention is applied.

As illustrated in FIG. 15, the four-sided tiling liquid crystal display device of the present invention includes tiling in areas A, B, C, and D so that the plurality of panels 300a, 300b, 300c, and 300d contact each other. tiling). In this case, the plurality of panels 300a, 300b, 300c, and 300d are provided with gate drivers 301a, 301b, 301c, and 301d at the outer portions, respectively, and source drivers 302a, 302b, 302c, and 302d. Controlled by a controller (not shown), a plurality of panels 300a, 300b, 300c, and 300d formed in contact with each other perform one display.                     

For example, the first panel 300a formed in the area A will be described.

A thin film transistor array is formed in the display area (inside of the dotted line) of the first panel 300a, and the first lower substrate in which the first gate driver 301a and the first source driver 302a are formed in the non-display area. 250a) and a liquid crystal layer (not shown) formed between the first upper substrate 260a and the first upper substrate 260a and the first lower substrate 250a corresponding to the thin film transistor array to form a color filter array. )

Like the first panel 300a, the second panel 300b, the third panel 300c, and the fourth panel 300d are formed, and portions of the panel where the driving unit is not formed are in contact with each other to form a four-side tiling liquid crystal display. Make up the device.

Here, the dotted line which is not described here indicates the display area (display area) inside the dotted line, and the outside of the dotted line indicates the non-display area, indicating the boundary between the display area and the non-display area.

As illustrated in FIG. 16, in the four-side tiling liquid crystal display device, in the P region where all four liquid crystal panels 300a, 300b, 300c, and 300d contact each other, corner portions of each liquid crystal panel meet. In this case, the shape of the seal patterns 290a, 290b, 290c, and 290d of each panel positioned in the P region is a straight line type parallel to the corresponding side of the adjacent display unit.

Here, inner dam patterns 310a, 310b, 310c, and 310d are formed on inner lines of the seal patterns 290a, 290b, 290c, and 290d, and outer lines of the seal patterns 290a, 290b, 290c, and 290d. Outside dam patterns 311a, 311b, 311c, and 311d are formed to adjust line widths of the seal patterns 290a, 290b, 290c, and 290d. In this case, the inner and outer dam patterns 310a, 310b, 310c, 310d, 311a, 311b, 311c, and 311d are respectively linearly spaced apart from the corresponding side of the display by a predetermined interval, and each has a '-' shape at a corner portion. . In this case, the interval between the edges of the pixels (one pixel consisting of R, G, and B subpixels) in each display area between the panels in the diagonal direction is 848 µm, and the interval between the inner edges of the seal pattern is 770 µm. It can be observed that there is no phenomenon penetrating into the display area and is formed in the inner and outer dam patterns 310a, 310b, 310c, 310d, 311a, 311b, 311c, and 311d.

In the display area, the distance between the outermost sides of the pixels in the display area is 600 µm, and the interval between the inner dam patterns is 550 µm, and the inner dam patterns 310a, 310b, 310c, It can be seen that there is a space of 25 μm between 310d) and the pixel portion of the panel. This is a separation margin from the pixel portion when the inner dam patterns 310a, 310b, 310c, and 310d are formed.

At this time, the seal pattern formed between the inner and outer dam patterns of each panel is 200㎛, each of the inner and outer dam patterns is 30㎛, in this case, it can be seen that the adhesive margin between adjacent panels is 30㎛.

On the other hand, the core of the large-size liquid crystal panel manufacturing method through tiling is to form a seal pattern that is thinner and improved linearity than conventional. In particular, in the case of joining and joining the four panels, improving the straightness of the edge seal pattern of each panel is a key problem.                     

The seal pattern forming method of the present invention can straighten the shape of the corners of the seal pattern by changing the seal pattern forming method to a lattice shape or a corner outline forming type to improve this. Therefore, the seal pattern component that penetrates into the pixel portion is structurally blocked, so that it can be used not only in a tiling liquid crystal display device but also in a general liquid crystal display device.

In addition, by forming a dam pattern that uniformly guides the drawing of the seal pattern to a predetermined width on both sides of the seal pattern, the uniformity of the seal pattern is improved, and the gaps between the fine seals and the impact during cell cutting are reduced. It can play a mitigating role.

The seal pattern forming method of the present invention and the manufacturing method of the tiling liquid crystal display device using the same have the following effects.

First, a straight seal line is formed in correspondence with each side of the substrate, or a seal pattern for changing direction from the outer edge of the edge to the next side can be secured, thereby ensuring the straightness of the edge of the seal pattern.

Second, even when the corner margin is minimized, it is possible to realize a stable structure panel without penetrating the pixel portion of the seal pattern material.

Third, by forming dam patterns on both sides of the seal pattern, it is possible to form a uniform fine seal pattern.

Fourth, the width of the seal pattern is defined by a dam pattern with strong pattern retention, and thus the amount of glass fiber used can be significantly reduced or eliminated in the material forming the seal pattern, so that the blending process caused by the glass fiber can be omitted. Can extend the life.

Fifth, since a uniform fine seal pattern can be formed at both the corner portion and the straight portion, stability during the scribing / breaking process and the subsequent grinding process can be ensured.

Sixth, by applying a uniform straight dam pattern in which a fine seal pattern is defined therein, when forming a tiling liquid crystal display device, despite the seal pattern of the minimum width at each corner, it is possible to secure adhesiveness and support ability of the entire panel. Can be.

Seventh, since a uniform fine seal pattern can be formed, when the tiling liquid crystal display device is implemented, the inter-panel junction region is not visually observable (no seam area is observed), thereby enabling a more stable display device.

Claims (29)

Preparing a substrate in which a display area is defined at a center and a non-display area is defined outside the display area; Forming an array in a display area of the substrate; Dispensing, in the non-display area, a straight seal line from one end of the substrate to the other end at a predetermined interval with respect to each side forming an edge of the display area; And And forming a first dam pattern on an inner side of the seal line and a second dam pattern on an outer side of the non-display area. And the second dam pattern is removed at an edge where the seal line in the horizontal direction and the seal line in the vertical direction cross each other. The method of claim 1, The sealing line adjacent to one side of each edge forming the edge of the display area is dispensed with an opening of a predetermined interval, and the sealing lines adjacent to the other side are continuously discharged from one end of the corresponding side to the other end. Seal pattern forming method characterized in that the dispensing. The method of claim 1, And a seal line formed corresponding to each edge forming the edge of the display area by continuously dispensing from one end of the corresponding side to the other end of the display area. delete delete Preparing a substrate in which a display area is defined at a center and a non-display area is defined outside the display area; Forming an array in a display area of the substrate; A third step of causing the dispenser to correspond to the non-display area at one end adjacent to one side of the edge of the display area; A fourth step of dispensing a straight seal line from one end adjacent to the one side to the other end using the dispenser; And And a fifth step of redirecting the dispenser or the substrate at an outer edge of the corner between the one side and the next side. The seal line on the substrate formed by the change of direction of the fifth step is a seal pattern forming method characterized in that formed in the '4' shape on the outer edge of the corner between the one side and the next side. The method of claim 6, And dispensing the seal line in succession with the fourth and fifth steps, respectively, adjacent to the side of each other side forming the edge of the display area. delete Defining a plurality of display regions spaced apart from each other on the original plate, and forming an array in each display region; And Forming a seal pattern by dispensing in a straight line in one direction from the other end of the disc to a side spaced apart from each other on the same line among edges surrounding edges of each display area of the arrays adjacent to each other on the disc; It is made, including In the forming of the array, a first dam pattern is further formed on an inner side of a portion where the seal pattern is to be formed, and a second dam pattern which is removed from an edge at which the seal pattern in the horizontal direction crosses the seal pattern in the vertical direction is formed on the outside. The seal pattern formation method of the liquid crystal display device characterized by the above-mentioned. delete delete Defining a plurality of display regions spaced apart from each other on the original plate, and forming an array in each display region; And One side of the edge surrounding each edge of the display area of the array adjacent to each other on the disc adjacent to a predetermined side in a straight line dispensing from one end to the other end, and the direction change at the outer edge of the edge between the predetermined side and the next side And dispensing to form a seal pattern, Seal pattern forming method characterized in that the direction change made in the outer edge of the corner between the predetermined side and the next side has a '4' shape. delete The method of claim 12, In the forming of the array, the seal pattern forming method further comprises forming a first dam pattern on the inside of the portion where the seal pattern is to be formed and a second dam pattern on the outside. 15. The method of claim 14, And the second dam pattern is removed at an edge where the seal pattern in the horizontal direction and the seal pattern in the vertical direction cross each other. Preparing a plurality of pairs of first and second substrates each having a display area at a center and a non-display area outside the display area; Forming a TFT array in a display area of the first substrates and forming a color filter array in the display area of the second substrates; A straight seal line from one end of the substrate to the other end of the pair of first and second substrates, spaced apart from each other by a predetermined interval on each side of the edge of the display area. Dispensing; Forming a spacer in a display area of any one of the pair of first and second substrates; Bonding the array of first and second substrates of each pair to face each other to form a plurality of liquid crystal panels; Grinding a predetermined side of the non-display area of each liquid crystal panel; And Bonding each liquid crystal panel using a predetermined side on which the grinding of the liquid crystal panel is made as a bonding site with another liquid crystal panel, When the TFT array process is performed on the first substrate, a second dam pattern is removed at an inner side of a portion where the seal line is to be formed, and at the outer side, a second dam pattern is formed at an edge where the seal line in the horizontal direction and the seal line in the vertical direction cross each other. A dam pattern is further formed, The manufacturing method of a tiling liquid crystal display device characterized by the above-mentioned. delete delete Preparing a plurality of pairs of first and second substrates each having a display area at a center and a non-display area outside the display area; Forming a TFT array in a display area of the first substrates and forming a color filter array in the display area of the second substrates; A straight seal line from one end of the substrate to the other end of the pair of first and second substrates, spaced apart from each other by a predetermined interval on each side of the edge of the display area. Dispensing; Forming a spacer in a display area of any one of the pair of first and second substrates; Bonding the array of first and second substrates of each pair to face each other to form a plurality of liquid crystal panels; Grinding a predetermined side of the non-display area of each liquid crystal panel; And Bonding each liquid crystal panel using a predetermined side on which the grinding of the liquid crystal panel is made as a bonding site with another liquid crystal panel, When the color filter array process is performed on the second substrate, a first dam pattern is formed at an inner side of a region where the seal line is to be formed, and at the outer side, a first dam pattern is removed at an edge at which a horizontal seal line and a vertical seal line cross each other. A method of manufacturing a tiling liquid crystal display device, further comprising two dam patterns. delete The method of claim 16 or 19, After forming the array on the first and second substrates of each pair, the liquid crystal is transferred to any one of the first and second substrates of each pair between the step of bonding the first and second substrates of each pair. A method of manufacturing a tiling liquid crystal display device, further comprising dropping. The method of claim 16 or 19, And injecting a liquid crystal between each pair of first and second substrates after the step of bonding the first and second substrates of each pair. Preparing a plurality of pairs of first and second substrates each having a display area at a center and a non-display area outside the display area; Forming a TFT array in a display area of the first substrates and forming a color filter array in the display area of the second substrates; In the non-display area of any one of the pair of first and second substrates, a straight line is dispensed from one end to the other end adjacent to a predetermined side of the edge forming the edge of the display area. Forming a seal pattern by reversing and dispensing at an edge boundary between a side and a next side;  Dispensing a straight seal line from one end of the substrate to the other end of the substrate at a predetermined interval apart from each other; Forming a spacer in a display area of any one of the pair of first and second substrates; Bonding the array of first and second substrates of each pair to face each other to form a plurality of liquid crystal panels; Grinding a predetermined side of the non-display area of each liquid crystal panel; And Bonding each liquid crystal panel using a predetermined side on which the grinding of the liquid crystal panel is made as a bonding site with another liquid crystal panel, When the TFT array process is performed on the first substrate, a second dam pattern is removed at an inner side of a portion where the seal pattern is to be formed, and a second seal pattern is removed at an edge at an outer side of the seal pattern in a horizontal direction and a seal pattern in a vertical direction. A dam pattern is further formed, The manufacturing method of a tiling liquid crystal display device characterized by the above-mentioned. delete delete Preparing a plurality of pairs of first and second substrates each having a display area at a center and a non-display area outside the display area; Forming a TFT array in a display area of the first substrates and forming a color filter array in the display area of the second substrates; In the non-display area of any one of the pair of first and second substrates, a straight line is dispensed from one end to the other end adjacent to a predetermined side of the edge forming the edge of the display area. Forming a seal pattern by reversing and dispensing at an edge boundary between a side and a next side;  Dispensing a straight seal line from one end of the substrate to the other end of the substrate at a predetermined interval apart from each other; Forming a spacer in a display area of any one of the pair of first and second substrates; Bonding the array of first and second substrates of each pair to face each other to form a plurality of liquid crystal panels; Grinding a predetermined side of the non-display area of each liquid crystal panel; And Bonding each liquid crystal panel using a predetermined side on which the grinding of the liquid crystal panel is made as a bonding site with another liquid crystal panel, When the color filter array process is performed on the second substrate, a first dam pattern is formed at an inner side of a region where the seal pattern is to be formed, and at the outer side, a first dam pattern is removed at an edge where the horizontal seal pattern and the vertical seal pattern cross each other. A method of manufacturing a tiling liquid crystal display device, further comprising two dam patterns. delete The method of claim 23 or 26, After forming the array on the first and second substrates of each pair, the liquid crystal is transferred to any one of the first and second substrates of each pair between the step of bonding the first and second substrates of each pair. A method of manufacturing a tiling liquid crystal display device, further comprising dropping. The method of claim 23 or 26, And injecting a liquid crystal between each pair of first and second substrates after the step of bonding the first and second substrates of each pair.

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