KR100575232B1 - Method of fabricating liquid crystal display panel having various driving mode - Google Patents

Abstract

The present invention is applied to the same rubbing process by arranging liquid crystal display panels of various sizes on one glass substrate with different placement angles, and is divided into a plurality of panel regions having different sizes. Providing a; Arranging a plurality of array substrates or color filter substrates having different modes among the twisted nematic mode and the transverse electric field mode in the panel region of the glass substrate with different arrangement angles according to the respective modes; Performing an array process on the array substrate and performing a color filter process on the color filter substrate; Forming an alignment layer on the array substrate and the color filter substrate, respectively; Arranging a rubbing roll to have a predetermined angle with the glass substrate, and rubbing through the rubbing roll to form different initial alignment directions on a plurality of array substrates and color filter substrates having different arrangement angles; Bonding the glass substrate on which the array substrate is disposed and the glass substrate on which the color filter substrate is disposed; And cutting the bonded pair of glass substrates into a plurality of unit liquid crystal display panels.

Glass substrate, drive mode, liquid crystal display panel, rubbing, placement angle

Description

Liquid crystal display panel manufacturing method of various driving modes {METHOD OF FABRICATING LIQUID CRYSTAL DISPLAY PANEL HAVING VARIOUS DRIVING MODE}

1 is a plan view schematically illustrating a structure of a general liquid crystal display panel.

FIG. 2 is a flowchart illustrating a manufacturing process of the liquid crystal display panel illustrated in FIG. 1.

3A and 3B illustrate a plurality of liquid crystal display panels arranged on a glass substrate.

4 is a diagram illustrating a plurality of liquid crystal display panels having different sizes disposed on a glass substrate.

FIG. 5 is a view showing a plurality of liquid crystal display panels having different sizes and driving modes are disposed on a glass substrate according to a first embodiment of the present invention.

6A and 6B illustrate a plurality of liquid crystal display panels having different sizes and driving modes disposed on a glass substrate according to a second embodiment of the present invention.

** Explanation of symbols for main parts of drawings **

110a, 210a, 310a: first liquid crystal display panel

110b, 210b, and 310b: second liquid crystal display panel

140,240,340: Glass substrate 170a, 170b, 270,370: Rubbing roll

The present invention relates to a method for manufacturing a liquid crystal display panel, and in particular, by manufacturing a liquid crystal display panel of various sizes and driving modes on a glass substrate, a method of manufacturing a liquid crystal display panel which can improve the utilization efficiency of a glass substrate and reduce manufacturing costs. It is about.

In today's information society, display is more important as a visual information transmission medium, and in order to gain a major position in the future, it is necessary to satisfy requirements such as low power consumption, thinness, light weight, and high definition. Currently, the liquid crystal display device, which is the flagship product of the flat panel display (FPD), has not only the ability to satisfy these conditions of the display but also mass production, so that various new products are rapidly created. (Cathode Ray Tube; CRT) has established itself as a key component industry to gradually replace.

A general liquid crystal display device displays an image by adjusting a light transmittance of a liquid crystal using an electric field. To this end, the liquid crystal display device includes a liquid crystal display panel including a driving circuit unit to output an image, a backlight unit installed under the liquid crystal display panel to emit light to the liquid crystal display panel, and the backlight. It consists of a mold frame and a case which support a unit and a liquid crystal display panel.

Hereinafter, a liquid crystal display panel will be described in detail with reference to FIG. 1.

1 is a plan view schematically illustrating a structure of a general liquid crystal display panel.

As shown in the figure, the liquid crystal display panel 10 is largely formed between the array substrate 20 and the color filter substrate 30 including the driving circuit unit and between the array substrate 20 and the color filter substrate 30. It consists of a liquid crystal layer (not shown).

The array substrate 20 is arranged horizontally and horizontally on the substrate 20 to define a plurality of gate lines 21, data lines 22, and the gate lines 21 and data lines that define a plurality of pixel regions 25. A thin film transistor (TFT) (not shown), which is a switching element formed in the cross region of 22, and a pixel electrode (not shown) formed on the pixel region 25 are formed.

In this case, one side of the long side and one side of the array substrate 20 protrude relative to the color filter substrate 30 so that the driving circuit unit for driving the liquid crystal display panel 10 is positioned. In particular, the gate pad part 24 is formed on one protruding short side of the array substrate 20, and the data pad part 23 is formed on one protruding one side of the array substrate 20.

In addition, the gate pad part 24 supplies a scanning signal supplied from a gate driving circuit part (not shown) to the gate line 21 of each pixel area 25 of the pixel part which is an image display area. The data pad part 23 supplies the image information supplied from the data driving circuit part (not shown) to the data line 22 of the pixel area 25.

Although not shown in the drawing, a color filter for implementing color and a common electrode which is a counter electrode of the pixel electrode formed on the array substrate 20 are formed in the image display area of the color filter substrate 30.

The array substrate 20 and the color filter substrate 30 configured as described above are bonded to face each other by a sealant (not shown) formed at the outside of the image display area to form the liquid crystal display panel 10. The bonding of the substrate is performed through a bonding key (not shown) formed on the array substrate 20 or the color filter substrate 30.

The manufacturing process of the liquid crystal display panel can be largely divided into an array process for forming a switching element on an array substrate, a color filter process for forming a color filter on a color filter substrate, and a cell process. The process is described with reference to FIG. 2 as follows.

First, a thin film transistor which is a switching element which is arranged vertically and horizontally on a transparent insulating substrate such as glass to define a plurality of pixel regions and is connected to the gate line and the data line in each pixel region. To form (S101). In addition, the pixel electrode is connected to the thin film transistor through the array process and drives the liquid crystal layer as a signal is applied through the thin film transistor.

In addition, the color filter substrate may include a black matrix that distinguishes between a color filter including sub color filters R, G, and B that implements color by a color filter process and the sub color filter, and blocks light that passes through the liquid crystal layer. black matrix) and a transparent common electrode serving as an opposite electrode of the pixel electrode (S104).

Subsequently, after the alignment layer is applied to the array substrate and the color filter substrate, the alignment control force or the surface fixing force (ie, the pretilt angle and orientation direction) is applied to the liquid crystal molecules of the liquid crystal layer formed between the two substrates. Rubbing the alignment layer to provide (S102, S105).

Next, after dispersing a spacer for maintaining a constant cell gap on the array substrate and applying a sealing material to an outer portion of the color filter substrate, pressure is applied to the array substrate and the color filter substrate. It adheres (S103, S106, S107).

On the other hand, the array substrate and the color filter substrate are formed on a large glass substrate. In other words, a plurality of panel regions are formed on a large glass substrate, and a thin film transistor and a color filter layer, which are switching elements, are formed in each of the panel regions, so that the glass substrate is cut and processed to produce a single liquid crystal display panel. Must be (S108).

 Subsequently, liquid crystal is injected into each of the liquid crystal display panels processed as described above through the liquid crystal inlet, and the liquid crystal inlet is encapsulated to form a liquid crystal layer, and then the liquid crystal display panel is manufactured by inspecting each liquid crystal display panel ( S109, S110).

Meanwhile, in manufacturing the liquid crystal display panel as described above, in order to improve productivity, a method of manufacturing a plurality of unit liquid crystal display panels on a large area glass substrate at the same time is generally applied.

3A and 3B illustrate a plurality of liquid crystal display panels arranged on a large glass substrate, wherein six liquid crystal display panels are arranged at regular intervals in consideration of the size of the glass substrate and the liquid crystal display panel. It is shown.

First, FIG. 3A illustrates a case where a liquid crystal display panel of a twisted nematic (TN) mode is disposed on a glass substrate.

As shown in the drawing, six first liquid crystal display panels 10a of the same size are disposed on the glass substrate 40.

At this time, since the first liquid crystal display panel 10a is separated by processing the glass substrate 40, an area where the panel 10a is not formed is an area discarded after processing. Therefore, the first liquid crystal display panel 10a should be arranged to minimize the area of the glass substrate 40 on which the liquid crystal display panel 10a is not formed, so that the number of the liquid crystal display panels 10a can be as large as possible. desirable.

On the other hand, the first liquid crystal display panel 10a is configured in a twisted nematic mode which is a general display operation mode.

In the twisted nematic mode liquid crystal display panel, a horizontal alignment layer is formed on a pair of electrodes (ie, a pixel electrode and a common electrode), and the pair of horizontal alignment layers are subjected to an alignment process by rubbing or the like in a direction perpendicular to each other. That is, in the twisted nematic mode, the alignment directions of the alignment layers formed on the array substrate and the color filter substrate cross each other, and are formed to be symmetric about, for example, the gate line (X-axis direction).

For reference, the liquid crystal display panel is a display element for displaying an image by controlling the amount of light passing through the liquid crystal layer. Control of the amount of light transmitted is performed by the initial alignment state of the liquid crystal molecules having birefringence characteristics and the driving of the liquid crystal molecules by signals. The driving mode of the liquid crystal display panel is classified by the initial alignment direction and driving mode of the liquid crystal molecules as described above. In other words, the liquid crystal display panels of each drive mode have different initial alignment directions from the liquid crystal display panels of other drive modes, and therefore the rubbing direction to be executed on the alignment film must also be different.

Accordingly, in the liquid crystal display panel 10a configured in the twisted nematic mode, the rubbing roll 70 must be disposed to form a 45 degree angle with the Y-axis direction shown in FIG. 3A.

That is, as shown in the drawing, the rubbing roll 70 with the rubbing cloth provided around the rubbing traveling direction (for example, the extending direction of the data line (not shown) formed on the liquid crystal display panel 10a (Y-axis direction)). ) And at a predetermined angle (about 45 degrees)) to operate the rubbing roll 70 or the substrate 40 to perform a rubbing process.

In this case, an arrangement angle of the rubbing roll 70 may vary depending on an arrangement direction of the liquid crystal display panel 10a disposed on the glass substrate 40 (that is, an arrangement angle of the panel 10a). In addition, the rubbing of the array substrate and the color filter substrate may be performed in different directions by changing the placement angle of the rubbing roll 70.

In addition, since the viewing angles of the liquid crystal display panel 10a manufactured according to the direction of rubbing on the glass substrate 40 are determined, in order to manufacture a plurality of liquid crystal display panels 10a having the same viewing angle. The panels 10a must be arranged in the same direction.

Next, FIG. 3B illustrates a case in which a liquid crystal display panel in an in-plane switching (IPS) mode is disposed on a glass substrate.

As shown in the drawing, six first liquid crystal display panels 10a of the same size are disposed on the glass substrate 40.

At this time, the first liquid crystal display panel 10a is configured in the transverse electric field mode.

Twisted nematic mode, which is a driving method generally used in liquid crystal display panels, is a method of driving the liquid crystal molecules on the nematic perpendicular to the substrate, and the liquid crystal display panel of the above method has a narrow viewing angle of about 90 degrees. have. This is due to the refractive anisotropy of the liquid crystal molecules because the liquid crystal molecules oriented horizontally with the substrate are oriented almost perpendicular to the substrate when a voltage is applied to the liquid crystal display panel.

In contrast, the transverse electric field mode is a method of driving the liquid crystal molecules in a horizontal direction with respect to the substrate to improve the viewing angle to 170 degrees or more.

In the transverse electric field mode, the alignment direction of the alignment layer formed on the array substrate and the color filter substrate is generally formed to be parallel to the extension direction (Y-axis direction) of the data line, for example. At this time, in the transverse electric field mode, the alignment direction may be formed at a predetermined angle (about 15 to 20 degrees) with the extending direction of the data line, but the alignment directions in the array substrate and the color filter substrate will be parallel to each other.

Therefore, the first liquid crystal display panel 10a configured in the transverse electric field mode arranges the rubbing roll 70 in parallel with the Y-axis direction, and then operates the rubbing roll 70 or the substrate 40 to perform a rubbing process. Will run.

On the other hand, when fabricating a larger liquid crystal display panel in a state where the size of the glass substrate is fixed, as shown in FIG. 4, only two second liquid crystal display panels 10b are disposed on the glass substrate 40. In addition, the glass substrate 40 in the region where the second liquid crystal display panel 10b is not disposed may be discarded.

Therefore, there is a problem that the utilization efficiency of the glass substrate 40 is lowered, which leads to a decrease in productivity and a cost increase of the product.

In this case, when the second liquid crystal display panel 10b is disposed as shown in the drawing, rubbing is performed to produce a panel having the same viewing angle as that of the first liquid crystal display panel 10a shown in FIGS. 3A and 3B. It should proceed 90 degrees from the rubbing direction shown in 3a and 3b.

Typically, 4, 6, 8, or 16 sheets of liquid crystal display panels, such as 4, 6, or 16 sheets, are formed on the glass substrate. Thus, the technology of forming a plurality of liquid crystal display panels on the glass substrate improves the manufacturing efficiency of the liquid crystal display panel. It is an important factor to determine. Accordingly, researches for efficiently using glass substrates have been actively conducted, and in particular, a large area liquid crystal display panel is required, which is an important factor in determining a manufacturer's competitiveness.

By the way, the glass substrate is manufactured according to the set standard, and the standard of the glass substrate varies depending on the size of the liquid crystal display panel. In other words, the standard of the glass substrate is set to the area where the liquid crystal display panel to be manufactured can be produced most efficiently. Therefore, when the liquid crystal display panel having a different area is formed on the glass substrate of the set standard, as shown in FIG. 4, many regions in which the liquid crystal display panel is not formed are generated. Of course, in this case, the liquid crystal display panel may be formed on a glass substrate having a standard corresponding to the liquid crystal display panel to be manufactured, but when there is no standardized glass substrate for the liquid crystal display panel to be manufactured, as shown in FIG. 4. The liquid crystal display panel must be formed on a glass substrate of another standard. Therefore, since many areas of the glass substrate are discarded after the separate processing of the liquid crystal display panel, there is a problem that the manufacturing cost of the liquid crystal display panel increases.

In addition, when a rubbing process is considered on one glass substrate, when a liquid crystal display panel of various driving modes is disposed, a plurality of rubbing processes may be performed according to the liquid crystal display panel of each driving mode, and thus, a manufacturing process of the liquid crystal display panel. And increasing costs.

The present invention is to solve the above problems, by arranging the array substrate and the color filter substrate of various sizes on one glass substrate with different placement angles according to the driving mode of the liquid crystal display panel that can apply the same rubbing process It is an object to provide a manufacturing method.

In addition, an object of the present invention is to provide a method of manufacturing a liquid crystal display panel which can efficiently use a glass substrate by optimally disposing liquid crystal display panels of different driving modes having various sizes on the glass substrate as described above.

Other features and objects of the present invention will be described in detail in the configuration and claims of the invention below.

In order to achieve the above object, the manufacturing method of the liquid crystal display panel of the present invention comprises the steps of providing a glass substrate divided into a plurality of panel areas having different sizes; Arranging a plurality of array substrates or color filter substrates having different modes among the twisted nematic mode and the transverse electric field mode in the panel region of the glass substrate with different arrangement angles according to the respective modes; Performing an array process on the array substrate and performing a color filter process on the color filter substrate; Forming an alignment layer on the array substrate and the color filter substrate, respectively; Arranging a rubbing roll to have a predetermined angle with the glass substrate, and rubbing through the rubbing roll to form different initial alignment directions on a plurality of array substrates and color filter substrates having different arrangement angles; Bonding the glass substrate on which the array substrate is disposed and the glass substrate on which the color filter substrate is disposed; And cutting the bonded pair of glass substrates into a plurality of unit liquid crystal display panels.

In this case, the performing of the array process may include forming a plurality of gate lines and data lines defining a plurality of pixel regions on the array substrate, forming a switching element in each pixel region of the array substrate, and The method may include forming a pixel electrode on the array substrate.

In addition, the color filter process may include forming a color filter layer on the color filter substrate and forming a black matrix on the color filter substrate.

In addition, the array process or the color filter process may be performed in one process line.

The method may further include dropping liquid crystal onto the array substrate or the color filter substrate.

Meanwhile, when the array substrate or the color filter substrate having the twisted nematic mode is disposed in the panel region, the rubbing roll may be disposed to have an angle of substantially 45 degrees with the data line or gate line formed on the array substrate. When an array substrate or a color filter substrate having a transverse electric field mode is disposed in the panel region, the rubbing roll may be disposed to have an angle substantially parallel to a data line or a gate line formed on the array substrate.

delete

In addition, an initial alignment direction corresponding to each of the modes may be set to each of the array substrate and the color filter substrate by performing one rubbing.

Hereinafter, the present invention will be described in detail.

Typically, 4, 6, 8, or 16 sheets of liquid crystal display panels, such as 4, 6, or 16 sheets, are formed on the glass substrate. Thus, the technology of forming a plurality of liquid crystal display panels on the glass substrate improves the manufacturing efficiency of the liquid crystal display panel. It is an important factor to determine.

In particular, when a liquid crystal display panel having the same size is formed on a glass substrate as in the prior art, when applied to a glass substrate of a different standard or a liquid crystal display panel of a different size, the utilization efficiency of the glass substrate is lowered, resulting in a decrease in productivity and a cost increase of the product. A problem that has become a factor has arisen.

Accordingly, the present invention provides a method of manufacturing a liquid crystal display panel which increases the utilization efficiency of the glass substrate by arranging the array substrate and the color filter substrate of different driving modes of various sizes on the glass substrate together.

At this time, since the liquid crystal display panels of different driving modes require different rubbing directions according to the respective driving modes, a problem arises in that the rubbing process is repeatedly performed a plurality of times.

On the other hand, the liquid crystal display panel of each driving mode has an initial alignment direction different from that of the other driving modes, and the initial alignment direction is adjusted by changing the rubbing direction or the arrangement angle of the panel.

Accordingly, the present invention provides a method of manufacturing a liquid crystal display panel using the same rubbing process by disposing liquid crystal display panels of various sizes on a glass substrate according to each driving mode. That is, liquid crystal display panels of different driving modes may be manufactured in the same rubbing process by arranging different arrangement angles according to the driving modes.

Hereinafter, exemplary embodiments of a method of manufacturing a liquid crystal display panel according to the present invention will be described with reference to the accompanying drawings.

FIG. 5 is a diagram illustrating a plurality of liquid crystal display panels having different sizes and driving modes disposed on a glass substrate according to a first embodiment of the present invention. FIG. 5 is a twisted nematic mode liquid crystal display panel and a transverse electric field mode liquid crystal display panel. It has shown that this is arrange | positioned so that all may have the same direction (namely, the same arrangement angle).

As shown in the figure, the first liquid crystal display panel 110a and the second liquid crystal display panel 110b having different sizes are disposed on the large-area glass substrate 140. That is, two first liquid crystal display panels 110a having a first size are disposed on the glass substrate 140, and two second liquid crystal display panels 110b having a second size are disposed.

In addition, the first liquid crystal display panel 110a may be configured in a twisted nematic mode, and the second liquid crystal display panel 110b may be configured in a transverse electric field mode.

In this case, when the first liquid crystal display panel 110a and the second liquid crystal display panel 110b are configured in the twisted nematic mode and the transverse electric field mode as described above, the first liquid crystal display panel 110a and the second liquid crystal display panel 110a are respectively formed. The liquid crystal display panel 110b has to perform two different rubbing processes.

That is, as shown in the first rubbing roll (170a) with a rubbing cloth is disposed around the predetermined direction (about 45 degrees) with respect to the traveling direction (Y-axis direction) after the first rubbing roll (170a) or substrate The first rubbing is performed by operating the 140 to rub the first liquid crystal display panel 110a configured in the twisted nematic mode.

When the first rubbing is completed, the second rubbing is executed. The second rubbing is the second rubbing roll 170b after arranging the second rubbing roll 170b perpendicular to the traveling direction (Y-axis direction). Or by rubbing the second liquid crystal display panel 110b configured in the transverse electric field mode by operating the substrate 140.

At this time, the rubbing traveling direction is an important condition for determining the viewing angle of the liquid crystal display panel to be manufactured. As described above, when the first liquid crystal display panel 110a and the second liquid crystal display panel 110b are disposed in the same direction. A plurality of liquid crystal display panels having the same viewing angle can be manufactured at the same time.

On the other hand, in the glass substrate shown in FIG. 4, only two liquid crystal display panels (which are the same size as the second liquid crystal display panel of FIG. 5) are arranged, whereas in the present embodiment, the glass substrates 140 of the same size are disposed on the glass substrate 140 of the same size. Since four liquid crystal display panels 110a and 110b are arranged, more liquid crystal display panels can be manufactured at the same glass substrate cost. As a result, the manufacturing cost of the liquid crystal display panel can be reduced.

In addition, according to the present exemplary embodiment, a plurality of liquid crystal display panels of various sizes may be disposed on the glass substrate. That is, according to the size of the glass substrate and the liquid crystal display panel, it is possible to arrange the liquid crystal display panel of various sizes that can use the glass substrate most efficiently. In particular, liquid crystal display panels for other uses, such as liquid crystal display panels for television sets, liquid crystal display panels for notebook computers, or liquid crystal display panels for mobile phones, have a considerable difference in size of the panels. A liquid crystal display panel of size may be efficiently arranged.

However, when the liquid crystal display panels of various sizes and driving modes are arranged on the glass substrate so as to have the same direction regardless of the driving modes, a plurality of rubbing processes may be performed according to the liquid crystal display panels of the respective driving modes. Problems that must proceed

Accordingly, another embodiment in which the panel is disposed in consideration of the arrangement angle of the liquid crystal display panel according to the driving mode will be described.

6A and 6B illustrate a plurality of liquid crystal display panels having different sizes and driving modes disposed on a glass substrate according to a second embodiment of the present invention. FIG. 6A and 6B illustrate a twisted nematic mode liquid crystal display panel and a transverse electric field. The mode liquid crystal display panel is arranged with different arrangement angles according to the driving mode.

First, as shown in FIG. 6A, the first liquid crystal display panel 210a and the second liquid crystal display panel 210b having different sizes are disposed on the glass substrate 240 having a large area with different arrangement angles. That is, the two first liquid crystal display panels 210a of the first size are disposed on the glass substrate 240 to have a predetermined angle (about 45 degrees) with the rubbing traveling direction (Y-axis direction). The two liquid crystal display panels 210b are arranged such that the rubbing traveling direction and the extending direction of the gate line (not shown) coincide with each other.

In this case, the first liquid crystal display panel 210a may be configured in a twisted nematic mode, and the second liquid crystal display panel 210b may be configured in a transverse electric field mode.

That is, as illustrated, when the rubbing roll 270 having the rubbing cloth is disposed vertically with respect to the traveling direction, the first liquid crystal display panel 210a of the twisted nematic mode is connected to the rubbing roll 270. The second liquid crystal display panel 210b of the transverse electric field mode is disposed to have an arrangement angle of about 0 degrees with respect to the rubbing roll 270.

As in the second embodiment, when the liquid crystal display panels 210a and 210b of different driving modes are arranged with different arrangement angles according to the driving modes, unlike the first embodiment, various driving modes are performed in one rubbing process. It is possible to simultaneously produce a liquid crystal display panel.

Meanwhile, although the first liquid crystal display panel 210a is configured in the twisted nematic mode and the second liquid crystal display panel 210b is configured in the transverse electric field mode, the present invention is not limited thereto. The liquid crystal display panel may be applied to a case in which the liquid crystal display panel is disposed with different arrangement angles.

For example, FIG. 6B illustrates the first liquid crystal display panel 310a having the first size in the transverse electric field mode and the second liquid crystal display panel 310b having the second size in the second embodiment of the present invention shown in FIG. 6A. ), But with the same configuration except for twisted nematic mode.

That is, as shown in the drawing, the two first liquid crystal display panels 310a in the transverse electric field mode are disposed on the large-area glass substrate 340 so as to have a predetermined angle (about 45 degrees) with the rubbing traveling direction. Two sheets of the second liquid crystal display panel 310b in the nematic mode are arranged such that the rubbing traveling direction coincides with the extending direction of the gate line, for example.

At this time, the rubbing roll 370 is not disposed perpendicularly to the rubbing traveling direction as in the case of FIG. 6A, but instead, the rubbing rolls 370 are disposed on the liquid crystal display panels 310a and 310b (the first liquid crystal display panel in the transverse electric field mode). 310a) has an arrangement angle of about 45 degrees with respect to the rubbing traveling direction, and the second liquid crystal display panel 310b of the twisted nematic mode has an arrangement angle of about 0 degrees with respect to the rubbing traveling direction. The rubbing roll 370 is disposed to have an angle of about 45 degrees.

Meanwhile, as in the first and second embodiments, the liquid crystal display panel efficiently disposed on the large-area glass substrate is manufactured through the same procedure as the manufacturing process shown in FIG. 2. .

First, a plurality of gate lines and data lines are formed on an array substrate by an array process to define a plurality of pixel regions, and thin film transistors, which are switching elements connected to the gate lines and data lines, are formed in the respective pixel regions. do. In addition, the pixel electrode is connected to the thin film transistor through the array process and drives the liquid crystal layer as a signal is applied through the thin film transistor.

In addition, the color filter substrate includes a black matrix for distinguishing between a color filter including sub color filters (R, G, B) for implementing color by a color filter process and the sub color filter, and blocking light transmitted through the liquid crystal layer; A common electrode, which is a counter electrode of the pixel electrode, is formed.

Subsequently, an alignment layer is applied to the array substrate and the color filter substrate, respectively, and then the alignment layer is provided to provide alignment control force or surface fixation force (ie, pretilt angle and alignment direction) to the liquid crystal molecules of the liquid crystal layer formed between the two substrates. Rub it.

At this time, in the case of the first embodiment, a plurality of rubbing processes must be performed according to each driving mode, and in the case of arranging the liquid crystal display panel with different arrangement angles according to the driving modes as in the second embodiment, one rubbing process is performed. Just proceed.

Subsequently, after dispersing a spacer for maintaining a constant cell gap on the array substrate and applying a sealing material to an outer portion of the color filter substrate, the array substrate and the color filter substrate are applied by applying pressure to the array substrate.

Subsequently, the glass substrate is cut and processed to separate each liquid crystal display panel, and then liquid crystal is injected into the separated liquid crystal display panel through the liquid crystal inlet, and the liquid crystal inlet is encapsulated to form a liquid crystal layer. By inspecting the display panel, liquid crystal display panels of various sizes are manufactured.

In the above method, a liquid crystal display panel is completed by injecting a liquid crystal into individual liquid crystal display panels by vacuum injection. However, the present invention may be applied not only to the vacuum injection method as described above but also to the liquid crystal dropping method of dropping the liquid crystal directly on the glass substrate.

Many details are set forth in the foregoing description but should be construed as illustrative of preferred embodiments rather than to limit the scope of the invention. Therefore, the invention should not be defined by the described embodiments, but should be defined by the claims and their equivalents.

As described above, in the manufacturing method of the liquid crystal display panel according to the present invention, the same rubbing process can be applied by arranging liquid crystal display panels of various sizes on one glass substrate with different arrangement angles according to driving modes. It provides the effect of reducing the cost.

In addition, when the liquid crystal display panels of various sizes are arranged on one glass substrate as described above, the liquid crystal display panels of different sizes may be simultaneously manufactured in one manufacturing line.

Claims (9)

Providing a glass substrate divided into a plurality of panel regions having different sizes; Arranging a plurality of array substrates or color filter substrates having different modes among the twisted nematic mode and the transverse electric field mode in the panel region of the glass substrate with different arrangement angles according to the respective modes; Performing an array process on the array substrate and performing a color filter process on the color filter substrate; Forming an alignment layer on the array substrate and the color filter substrate, respectively; Arranging a rubbing roll to have a predetermined angle with the glass substrate, and rubbing through the rubbing roll to form different initial alignment directions on a plurality of array substrates and color filter substrates having different arrangement angles; Bonding the glass substrate on which the array substrate is disposed and the glass substrate on which the color filter substrate is disposed; And And cutting the bonded glass substrates into a plurality of unit liquid crystal display panels. The method of claim 1, wherein the step of performing the array process Forming a plurality of gate lines and data lines defining a plurality of pixel regions on the array substrate; Forming a switching device in each pixel region of the array substrate; And And forming a pixel electrode on the array substrate. The method of claim 1, wherein the performing of the color filter process comprises forming a color filter layer on the color filter substrate and forming a black matrix on the color filter substrate. Way. The method of claim 1, further comprising dropping liquid crystal on the array substrate or the color filter substrate. delete The method of claim 2, wherein when the array substrate or the color filter substrate having the twisted nematic mode is disposed in the panel region, the rubbing roll has an angle of about 45 degrees with the data line or gate line formed on the array substrate. Method of manufacturing a liquid crystal display panel, characterized in that arranged. 3. The rubbing roll of claim 2, wherein when the array substrate or the color filter substrate having the transverse electric field mode is disposed in the panel region, the rubbing roll is disposed to have an angle substantially parallel to a data line or a gate line formed on the array substrate. Method of manufacturing a liquid crystal display panel characterized in that. The method of manufacturing a liquid crystal display panel according to claim 1, wherein an initial alignment direction corresponding to each mode is set on each of the array substrates and the color filter substrates by one rubbing. The method of claim 1, wherein the array process or the color filter process is performed in one process line.

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