KR100372578B1 - In Plane Switching mode Liquid crystal display device - Google Patents

Abstract

The present invention relates to a liquid crystal display device, and more particularly to a transverse electric field type liquid crystal display device for implementing a multi-domain.

In detail, the structure of the alignment layer rubbed in a symmetrical direction on one pixel area, the common electrode and the pixel electrode under the rubbed alignment layer in each direction are different from each other, and the area of the electrode and the distance between the electrodes are different. It can be configured to be optimized to improve the driving characteristics, to improve the aperture ratio, wide viewing angle characteristics and color shift (color shift) phenomenon can be produced in the plane switching mode LCD (In Plane Switching mode LCD).

Description

Transverse field type liquid crystal display device

The present invention relates to an image display device, and more particularly, to a liquid crystal display (LCD) including a thin film transistor (TFT).

In particular, the present invention relates to a liquid crystal display of an in-plane switching (hereinafter referred to as IPS mode) in which first and second electrodes for driving a liquid crystal of a liquid crystal display are formed on the same substrate.

In general, the driving principle of the liquid crystal display device uses the optical anisotropy and polarization 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 molecular arrangement can be controlled by artificially applying an electric field to the liquid crystal.

Accordingly, if the molecular arrangement direction of the liquid crystal is arbitrarily adjusted, the molecular arrangement of the liquid crystal is changed, and light polarized by optical anisotropy may be arbitrarily modulated to express image information.

Such liquid crystals may be classified into positive liquid crystals having positive dielectric anisotropy and negative liquid crystals having negative dielectric anisotropy according to the electrical characteristics. The liquid crystal molecules having positive dielectric anisotropy have long axes of liquid crystal molecules in a direction in which an electric field is applied. The liquid crystal molecules having a negative dielectric anisotropy are arranged in parallel, and the long axis of the liquid crystal molecules is perpendicular to the direction in which the electric field is applied.

Currently, active matrix LCDs (AM-LCDs) in which thin film transistors and pixel electrodes connected to the thin film transistors are arranged in a matrix manner have attracted the most attention due to their excellent resolution and video performance.

In general, the structure of a liquid crystal panel, which is a basic component of a liquid crystal display, will be described.

1 is an exploded perspective view illustrating a general TN liquid crystal panel.

As shown in the drawing, a general liquid crystal display includes a color filter 7 including a black matrix 6 and a sub color filter (red, green, blue) 8 and an upper portion on which a transparent common electrode 18 is formed on the color filter. And a lower substrate 22 having an array wiring including a pixel region P, a pixel electrode 17 formed on the pixel region, and a switching element T. The upper substrate 5 The liquid crystal 14 is filled between the lower substrates 22.

The lower substrate 22 is also referred to as an array substrate, and the thin film transistor T, which is a switching element, is positioned in a matrix type, and the gate wiring 13 and the data wiring 15 passing through the plurality of thin film transistors cross each other. Is formed.

The pixel P area is an area where the gate line 13 and the data line 15 cross each other. The pixel electrode 17 formed on the pixel region P uses a transparent conductive metal having relatively high light transmittance, such as indium-tin-oxide (ITO).

In the liquid crystal display device configured as described above, the liquid crystal layer 14 disposed on the pixel electrode 17 is oriented by a signal applied from the thin film transistor T, and the liquid crystal layer is aligned according to the degree of alignment of the liquid crystal layer. The image can be represented in a manner that controls the amount of light that passes through layer 14.

The liquid crystal display described above has a structure in which a common electrode is formed on a color filter panel which is an upper panel. That is, the liquid crystal display device having a structure in which the common electrode is perpendicular to the pixel electrode drives liquid crystal by an electric field applied up and down, and has excellent characteristics such as transmittance and aperture ratio, and the common electrode of the upper panel is grounded. It serves to prevent the destruction of the liquid crystal cell due to static electricity.

2A and 2B illustrate the operation of the liquid crystal 14 when the voltage is applied to the twisted nematic liquid crystal panel, and FIG. 2A is a view showing the arrangement of the liquid crystal of the TN liquid crystal panel when no voltage is applied. At this time, the liquid crystal 14 has positive dielectric anisotropy and has a horizontal arrangement in which upper and lower liquid crystals are twisted at 90 ^° in plan view from the alignment direction.

2B is a diagram illustrating an arrangement state of liquid crystal molecules when a voltage is applied to upper and lower substrates. When voltage is applied to the upper and lower substrates, the liquid crystal molecules 14 twisted to 90 ^o are in the direction of an electric field. As a result, the extreme value of the liquid crystal molecules becomes approximately 90 °.

Therefore, there is a problem in that the change in C / R (contrast ratio) and luminance according to the viewing angle becomes severe, and thus the wide viewing angle cannot be realized.

FIG. 3 is a diagram illustrating a configuration of a liquid crystal display device in the IPS mode proposed to solve the problem of the viewing angle caused by the vertical electric field. The pixel electrode 34 and the common electrode 36 are the same on the substrate 30. It is formed on a plane. That is, the liquid crystal 14 is operated by the horizontal electric field 35 formed on the same substrate 30 between the pixel electrode 34 and the common electrode 36. The color filter panel 32 is formed on the liquid crystal layer 14.

4A and 4B illustrate a change in the arrangement of liquid crystal molecules when voltage is turned on and off in the IPS mode. As shown in FIG. 4A, the electric field 35 is applied to the pixel electrode 34 or the common electrode 36. It is shown that the change in the arrangement of liquid crystal molecules does not occur in the off state to which no is applied.

4B is a diagram illustrating a change in liquid crystal molecular array when a voltage is applied to the pixel electrode 34 and the common electrode 36, and it can be seen that a transverse electric field 35 is formed.

5A and 5B are plan views illustrating molecular arrangements of liquid crystals according to whether an electric field is applied to the common electrode and the pixel electrode. As shown in FIG. 5A, the common electrode 36 and the pixel electrode ( When no voltage is applied to 34, the alignment direction 41 of the liquid crystal molecules is arranged in the same direction as the alignment direction of the initial alignment layer (not shown).

On the other hand, as shown in FIG. 5B, when voltage is applied to the pixel electrode 34 and the common electrode 36, the liquid crystal molecules are arranged in the direction 35 of the direction in which the electric field is applied. It can be seen.

The advantage of the IPS mode is that the wide field of view is possible because the change in the extreme value of each liquid crystal is small when an electric field is applied. That is, when the liquid crystal display device is viewed from the front, the liquid crystal display device may be visible in the up / down / left / right directions at about 70 °.

The liquid crystal display of the IPS mode can be manufactured by variously modifying the shape of the common electrode and the pixel electrode formed on one pixel area in order to obtain a wider viewing angle and prevent color shift.

6 is a plan view illustrating some pixels of an array substrate for a transverse electric field type liquid crystal display device according to a first example.

As shown in the drawing, the first example is a general IPS mode in which the common electrode 36 and the pixel electrode 34 are alternately arranged on a single substrate. In this case, the common electrode 36 and the pixel electrode 34 The first region A and the second region B defined in a single pixel region for forming a multi-domain in the process of forming an alignment layer on the substrate on which the switching element T is formed and rubbing. The rubbing direction of the alignment layer with respect to the rubbing direction (rubbing direction) is different to rubbing treatment.

This rubbing process causes the pretilt angles of the liquid crystal molecules 53 positioned in the first region A and the second region B to be symmetrical to each other.

In this way, a domain, which is an aggregate of liquid crystal molecules having the same alignment direction, can be formed with respect to one pixel.

Such a structure exhibits a liquid crystal alignment property in which each domain, which is an aggregate of liquid crystal molecules, is symmetrical to each other, thereby achieving color compensation with each other, thereby obtaining a wide viewing angle effect as well as an effect of preventing color shift.

7A and 7B are enlarged plan views illustrating enlarged views of A and B of FIG. 6, respectively.

7A shows the alignment direction of the liquid crystal in the substrate on which the alignment film is rubbed in the first direction 51a, and the configuration in FIG. 7B is subjected to rubbing in the second direction 51b so as to be symmetrical with the first direction 51a. The orientation direction of liquid crystal molecules on the substrate is shown.

As shown, when no voltage is applied, the liquid crystal molecules (dotted line) existing in the first region and the second region are positioned symmetrically with each other, but when the voltage is applied to the white state, Since the liquid crystal alignment directions of the domains are the same, the symmetry existing between the domains A and B of the first region and the second region disappears.

Therefore, when not only the wide viewing angle characteristic is obtained but also the white color, the liquid crystal molecules are collectively arranged in one direction, so that the screen becomes yellow when viewed in the short-axis direction of the liquid crystal molecules. The screen is blue, and thus there is a problem that the image quality is degraded.

FIG. 8 is an enlarged plan view illustrating some pixels of an array substrate for a transverse electric field type liquid crystal display device configured by a Zigzag method according to a second example of the related art.

As illustrated, the common electrode 36 and the pixel electrode 34 are formed in a zigzag-shaped bending structure, and a rubbing operation is performed in one direction 61 to apply an electric field applied to the injected liquid crystal. The direction of 63 is changed.

Such an electrode configuration allows the alignment characteristics of the liquid crystal to have symmetry.

Therefore, the liquid crystal positioned in one pixel can be oriented in various directions without being aligned in the corresponding one direction, thereby inducing a multi domain that can vary the alignment direction of the liquid crystal oriented in one pixel. can do.

As described above, due to the symmetrical multi-domain structure, the birefringence in the liquid crystal alignment direction may be canceled out to minimize the color shift phenomenon.

However, such a structure has an initial orientation of the liquid crystal in which the direction 63 of the electric field generated in the bending edge portion C of the bent portion of the common electrode 36 and the pixel electrode 34 is determined by the rubbing direction 61. Since it is perpendicular to the direction, the liquid crystal does not rotate regardless of the intensity of the electric field and remains black, and the direction of the electric field formed on the outer portion of the electrode located at the edge (D) in the pixel also does not twist the liquid crystal normally. can not do it.

Therefore, the above-described abnormal alignment of the liquid crystals at the bending edge portion C and the intra-pixel edge portion D causes light leakage, resulting in discrepancy (defect in which white streaks are seen). Therefore, a method of extending the black matrix (not shown) formed on the upper substrate to the pixel area is used as a method for preventing the disclination occurring at the edge of the pixel from being seen from the outside. It causes a problem of decreasing the aperture ratio of the.

Accordingly, an object of the present invention is to fabricate an array substrate for a wide viewing angle IPS mode liquid crystal display device having a characteristic of optimizing an electrode gap between a common electrode and a pixel electrode, without reducing aperture ratio and without color shift phenomenon.

1 is an exploded perspective view showing a general liquid crystal display device;

2A and 2B illustrate an operation of a TN mode liquid crystal display device.

3 is a cross-sectional view illustrating a cross section corresponding to one pixel part of a general IPS mode liquid crystal display device;

4A and 4B are perspective views illustrating an operation of a general IPS mode liquid crystal display device.

5A and 5B are plan views of operations of a general IPS mode liquid crystal display,

6 is an enlarged plan view showing some pixels of an array substrate for an IPS mode liquid crystal display according to a first example of the related art;

7A and 7B are plan views illustrating alignment directions and polarization characteristics of liquid crystals according to a rubbing direction in the configuration of FIG. 6;

FIG. 8 is an enlarged plan view illustrating some pixels of an array substrate for an IPS mode liquid crystal display according to a second example of the prior art; FIG.

9A and 9B are enlarged plan views showing some pixels of an array substrate for an IPS mode liquid crystal display device according to the present invention;

10A to 10C are cross-sectional views illustrating the process sequence of FIG. 9 taken along lines II and II of FIG. 9.

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

111 substrate 113 gate electrode

115: source electrode 116: gate wiring

117: drain electrode 119: transparent pixel electrode

121: common electrode

An array substrate for an IPS mode liquid crystal display device according to the present invention for achieving the above object includes a gate wiring extending in a first direction; A data line crossing the gate line and extending in a second direction; A thin film transistor formed at a portion where the gate line and the data line cross each other and receiving a signal from the gate and data line; A pixel area formed by crossing the gate line and the data line and defined as a first area and a second area; A first vertical pattern connected to the thin film transistor and extending over a first region and a second region of the pixel region in parallel with a first data line among the data lines defining the pixel region; A second vertical pattern formed in the second region; a plurality of first horizontal patterns formed in the second region and extending from the first vertical pattern; and a second horizontal pattern connecting the first vertical pattern and the second vertical pattern. A transparent pixel electrode; A common wiring extending in the same direction as the gate wiring and receiving a first voltage; A first vertical pattern positioned between the first data line and the first vertical pattern of the pixel electrode in the common line and extending over the first area and the second area; and a second data line extending from the common line; A second vertical pattern parallel to the second vertical pattern, the third vertical pattern disposed between the first and second vertical patterns and configured in the second region, the first vertical pattern formed in the first region and extending from the second vertical pattern; A plurality of first horizontal patterns alternately positioned between the first horizontal patterns of the transparent pixel electrode, and a second component formed in the second region and extending from the upper side and the lower side of the third vertical pattern to the first and second vertical patterns, respectively; It includes a common electrode consisting of two horizontal patterns and an alignment layer formed on a substrate including the common electrode and the like.

The first horizontal pattern of the pixel electrode is formed to extend on the gate wiring.

The common electrode is characterized in that the transparent material.

The alignment directions of the alignment layers formed on the first region and the second region are symmetrical to each other.

An array substrate manufacturing method for a liquid crystal display device according to an aspect of the present invention includes the steps of preparing a substrate; Forming a gate wiring on the substrate and extending in a first direction; Forming a data line crossing the gate line and extending in a second direction; Forming a thin film transistor formed at a portion where the gate line and the data line cross each other and receiving a signal from the gate and data line; Forming a pixel area in which the gate line and the data line cross each other and define a pixel area as a first area and a second area; A first vertical pattern connected to the thin film transistor and extending over a first region and a second region of the pixel region in parallel with a first data line among the data lines defining the pixel region; A second vertical pattern formed in the second region; a plurality of first horizontal patterns formed in the second region and extending from the first vertical pattern; and a second horizontal pattern connecting the first vertical pattern and the second vertical pattern. Forming a transparent pixel electrode; Forming a common wiring extending in the same direction as the gate wiring and receiving a first voltage; A first vertical pattern positioned between the first data line and the first vertical pattern of the pixel electrode in the common line and extending over the first area and the second area; and a second data line extending from the common line; A second vertical pattern parallel to the second vertical pattern, the third vertical pattern disposed between the first and second vertical patterns and configured in the second region, the first vertical pattern formed in the first region and extending from the second vertical pattern; A plurality of first horizontal patterns intersected between the first horizontal patterns of the transparent pixel electrode, and a second component formed in the second region and extending from the upper side and the lower side of the third vertical pattern to the first and second vertical patterns, respectively; Forming a common electrode composed of two horizontal patterns; And forming an alignment layer on the substrate including the common electrode.

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

Example

The array substrate for a transverse electric field type liquid crystal display device according to the present invention includes an electrode structure that can optimize the spacing of the electrodes in consideration of the area ratio of the transmissive portion, so that the aperture ratio does not drop compared to the conventional one, and the driving characteristics of the substrate are optimized. We propose a method of manufacturing an array substrate for an IPS mode liquid crystal display device in which color shift is minimized along with wide viewing angle implementation.

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

9A and 9B are enlarged plan views illustrating some pixels of an array substrate for an IPS mode liquid crystal display according to the present invention.

As shown in FIG. 9A, the array substrate 111 for the IPS mode according to the present invention includes a gate electrode 113 connected to the gate wiring 116, a source electrode 115 and a drain electrode connected to the source wiring 118. A thin film transistor T composed of 117, a transparent pixel electrode 119 connected to the drain electrode 117 of the thin film transistor and having a horizontal pattern and a vertical pattern, and a horizontal pattern and a vertical pattern of the pixel electrode 119 The common electrode 121 is composed of a horizontal pattern and a vertical pattern alternately parallel to each other.

When the electrode structure is described in detail, the electrode structure according to the present invention alternates the common electrode 121 and the pixel electrode 119 having a bar shape formed on the same substrate to induce parallel fields between the electrodes. It is a shape to constitute.

Referring to FIG. 9B, the configuration of the common electrode and the pixel electrode and the alignment characteristics of the substrate will be described.

9B is a plan view illustrating the configuration of the common electrode and the pixel electrode in the configuration of FIG. 9A.

As illustrated, one pixel is defined as a first region and a second region, and configurations of the common electrode and the pixel electrode according to the first region and the second region are different.

In detail, in order to form a multi domain, pixels are alternately arranged in parallel with horizontal patterns 121a and 119a of the common electrode 121 and the pixel electrode 119. The first region E and the vertical patterns 121b and 119b of the common electrode and the pixel electrode are divided into parallel and intersected with the second region F. The alignment layer is formed on the substrate on which the common electrode and the pixel electrode are formed. After coating, the alignment layer (not shown) on the first region E and the second region F is rubbed in different directions to thereby rub the first region E and the second region ( The liquid crystal molecules belonging to F) have an initial pre-tilt of 45 degrees with the common electrode 121 and the pixel electrode 119 along the alignment directions 123a and 123b of the alignment layer. The liquid crystal molecules are configured to be perpendicular to each of the electrodes after the voltage is applied. Since the alignment direction of the liquid crystal molecules positioned in the region E and the alignment direction of the liquid crystal molecules positioned in the second region F may be configured to be symmetrical with each other, color shifts are compensated by compensating for color characteristics with a wide viewing angle. ) Can be prevented.

In this case, the alignment layer may use a means such as a rubbing cloth that physically imparts a pretilt angle, and a photo alignment layer may be used.

In general, in a transverse electric field type liquid crystal display device having a driving voltage of 5 V, the width W ₁ of the common electrode 121 (or FIG. 9A) or the pixel electrode 9 119 is designed and the width W ₂ between the two electrodes is designed. When designed to have a width ratio of 5: 8, the array board is optimally driven.

The electrode structure of the first region (E) according to the present invention is designed within the area between the gate wiring (116 in FIG. 9A) and the gate wiring, so that the optimum driving state can be obtained because of the relatively large design area. Is done.

Therefore, the substrate can be operated in a somewhat optimized driving state.

The pixel electrode uses a transparent conductive metal having excellent transmittance such as indium-tin-oxide (ITO), and the common electrode can be patterned using a gate wiring material in the process and can also be used as the transparent electrode. It can be patterned to further increase the aperture ratio, a weak point of IPS mode.

Hereinafter, when the common electrode and the pixel electrode are all composed of transparent electrodes, a method of manufacturing an array substrate for a liquid crystal display device according to the present invention will be described.

10A through 10C are cross-sectional views of the process of FIG. 9A taken along lines II and II of FIG.

First, as shown in FIG. 10A, conductive metals such as aluminum (Al), aluminum-based metals (AlNd), chromium (Cr), and molybdenum (Mo) are deposited and patterned on a substrate 111 at an arbitrary position. The gate wiring 116 including the protruding gate electrode 113 is formed.

Next, an inorganic insulating material including silicon nitride (SiN _X ), silicon oxide (SiO ₂ ), etc., benzocyclobutene, and acryl (Acryl) on the substrate 111 on which the gate electrode 113 is formed. An organic insulating material containing a resin-based resin or the like is deposited and patterned to form a gate insulating film 131 as a first insulating layer.

Next, an amorphous silicon containing pure amorphous silicon (a-Si: H) and fire (n + a-Si: H) pure is patterned on the gate insulating layer 131, and the island is formed on the gate electrode 113. The active layer 133 and the ohmic contact layer 135 are formed.

Next, a conductive metal such as chromium (Cr), molybdenum (Mo), or tantalum (Ta) is deposited and patterned on the substrate on which the active layer is formed, thereby forming an active layer in the data line (118 of FIG. 9) and the data line. A source electrode 115 protruding a predetermined area toward one side of 133, a drain electrode 117 spaced apart by a predetermined interval, and a data line 118 vertically extending from the source electrode 115 are formed.

As shown in FIG. 10B, the insulating material as described above is deposited on the substrate 111 on which the source and drain electrodes 115 and 117 are formed to form the first protective layer 137 as the second insulating layer. In addition, a drain contact hole 139 is formed on the drain electrode 117.

Next, transparent, such as indium-tin-oxide (ITO) and indium-zinc-oxide (IZO), is formed on the contact hole patterned first protective layer 137. A conductive metal is deposited and patterned to form a pixel electrode (119 in FIG. 9A) consisting of a horizontal pattern 119a and a vertical pattern (119b in FIG. 9). In this case, the horizontal pattern 119a of the pixel electrode is formed on the gate line.

In this case, the pixel electrode of the horizontal pattern extending above the gate wiring serves as a storage first electrode.

The pixel electrode is formed by dividing the pixel into two regions and formed through a first region and a second region, and spaced apart in parallel to the data line in parallel with each other (119b (1) of FIG. 9B) and the second region. And a second vertical pattern (119b (2) in FIG. 9) parallel to the first vertical pattern.

The first vertical pattern (119b (1) in FIG. 9) connects the plurality of horizontal pattern electrodes 119a belonging to the first region at one side, and connects the first vertical pattern (119b (1) in FIG. 9). The second vertical pattern (119b (2) in FIG. 9) is connected by a horizontal pattern 119a positioned in the second area.

As illustrated in FIG. 10C, an insulating material as described above is deposited on the entire surface of the substrate 111 on which the pixel electrode 119 is formed, and a second protective layer 141, which is a third insulating layer, is formed.

Next, by depositing and patterning the transparent conductive metal as described above on the second protective layer 141, the horizontal pattern 119a and the vertical pattern (119b of FIG. 9) of the pixel electrode 119 are respectively crossed. A transparent common electrode (121 in FIG. 9) having a horizontal pattern 121a and a vertical pattern, and a common wiring 145 for supplying a common voltage to the common electrode are formed. In this case, a part of the common wiring 145 functions as a storage second electrode together with the storage first electrode.

In this way, the array substrate for the IPS mode according to the present invention can be manufactured. In the present invention, since the common electrode and the pixel electrode are both transparent materials, the aperture ratio is improved.

In addition, since there is no part where a parasitic field exists between each electrode and the data wiring, there is no abnormal alignment characteristic of the liquid crystal positioned around the pixel.

Therefore, even if the common electrode is not used as the transparent electrode as described above, the aperture ratio does not fall as compared with the conventional art.

Therefore, the array substrate for the liquid crystal display device for the IPS mode according to the present invention as described above

First, a wide viewing angle is possible and a liquid crystal display device without color shift characteristics can be obtained in a structure in which the aperture ratio is not reduced compared to the conventional zigzag or straight shapes.

Second, there is an effect of improving the driving characteristics of the liquid crystal display device for the IPS mode by optimizing the area ratio between the electrodes.

Claims (10)

A gate wiring extending in the first direction; A data line crossing the gate line and extending in a second direction; A thin film transistor formed at a portion where the gate line and the data line cross each other and receiving a signal from the gate and data line; A pixel area formed by crossing the gate line and the data line and defined as a first area and a second area; A first vertical pattern connected to the thin film transistor and extending over a first region and a second region of the pixel region in parallel with a first data line among the data lines defining the pixel region; A second vertical pattern formed in the first region; a plurality of first horizontal patterns formed in the first region and extending from the first vertical pattern; and a second horizontal pattern connecting the first vertical pattern and the second vertical pattern. A transparent pixel electrode; A common wiring extending in the same direction as the gate wiring and receiving a first voltage; A first vertical pattern positioned between the first data line and the first vertical pattern of the pixel electrode in the common line and extending over the first area and the second area; and a second data line extending from the common line; A second vertical pattern parallel to the second vertical pattern, the third vertical pattern disposed between the first and second vertical patterns and configured in the second region, the first vertical pattern formed in the first region and extending from the second vertical pattern; A plurality of first horizontal patterns intersected between the first horizontal patterns of the transparent pixel electrode, and a second component formed in the second region and extending from the upper side and the lower side of the third vertical pattern to the first and second vertical patterns, respectively; A common electrode having two horizontal patterns; An alignment layer formed on a substrate including the common electrode Array substrate for a liquid crystal display device comprising a. The method of claim 1, The first horizontal pattern of the pixel electrode extends on the gate wiring array substrate The method of claim 1, The common electrode is a liquid crystal display array substrate of a transparent material. The method of claim 1, An array substrate for a liquid crystal display device, wherein the alignment directions of the alignment layers formed on the first region and the second region are symmetrical to each other. The method of claim 1, And the common electrode wiring is formed in the same process as the gate electrode. Preparing a substrate; Forming a gate wiring on the substrate and extending in a first direction; Forming a data line crossing the gate line and extending in a second direction; Forming a thin film transistor formed at a portion where the gate line and the data line cross each other and receiving a signal from the gate and data line; Forming a pixel area in which the gate line and the data line cross each other and define a pixel area as a first area and a second area; A first vertical pattern connected to the thin film transistor and extending over a first region and a second region of the pixel region in parallel with a first data line among the data lines defining the pixel region; A second vertical pattern formed in the first region; a plurality of first horizontal patterns formed in the first region and extending from the first vertical pattern; and a second horizontal pattern connecting the first vertical pattern and the second vertical pattern. Forming a transparent pixel electrode; Forming a common wiring extending in the same direction as the gate wiring and receiving a first voltage; A first vertical pattern positioned between the first data line and the first vertical pattern of the pixel electrode in the common line and extending over the first area and the second area; and a second data line extending from the common line; A second vertical pattern parallel to the second vertical pattern, the third vertical pattern disposed between the first and second vertical patterns and configured in the second region, the first vertical pattern formed in the first region and extending from the second vertical pattern; A plurality of first horizontal patterns intersected between the first horizontal patterns of the transparent pixel electrode, and a second component formed in the second region and extending from the upper side and the lower side of the third vertical pattern to the first and second vertical patterns, respectively; Forming a common electrode composed of two horizontal patterns; Forming an alignment layer on the substrate including the common electrode; Array substrate for a liquid crystal display device comprising a. The method of claim 6, The first horizontal pattern of the pixel electrode extends on the gate wiring array substrate The method of claim 6, The common electrode is a liquid crystal display array substrate of a transparent material. The method of claim 6, An array substrate for a liquid crystal display device, wherein the alignment directions of the alignment layers formed on the first region and the second region are symmetrical to each other. The method of claim 6, And the common electrode wiring is formed in the same process as the gate electrode.