WO2006005230A1

WO2006005230A1 - Wide-viewing angle lcd device

Info

Publication number: WO2006005230A1
Application number: PCT/CN2004/000802
Authority: WO
Inventors: Jianhua Chen; Yufu Lin; Ronglie Xu; Ruiliang Luo
Original assignee: Quanta Display Inc.; Quanta Display Japan Inc.
Priority date: 2004-07-13
Filing date: 2004-07-13
Publication date: 2006-01-19

Abstract

The present invention relates to a wide-viewing angle LCD device that has a plurality of pixel units. Each of the units comprises a first substrate with a first electrode thereon and in turn a first protrusion or a slit used to form the first pattern is formed on the first electrode; a second substrate which is opposed to the first substrate and has a second electrode thereon, then a second protrusion or a slit used to form the second pattern is also formed on the second electrode; and a LC layer between the first substrate and the second substrate. Wherein the combination of the first pattern and the second pattern constitutes the third pattern which has at least one cross point.

Description

Wide viewing angle liquid crystal display

[Technical field]

The present invention relates to a wide-viewing angle LCD structure, and more particularly to a wide viewing angle liquid crystal display having a full viewing angle effect.

[Background technique]

Liquid crystal displays (LCDs) have many advantages, such as small size, light weight, low power consumption, and the like. Therefore, LCDs have been widely used in electronic products such as portable computers, portable phones, and the like. That is to say, the LCD has gradually replaced the traditional cathode ray tube (CRT) and became the main stream of the display. However, the biggest drawback of conventional LCDs is their narrow viewing angle.

In recent years, many LCD wide viewing angle technologies have been proposed, one of which is the multi-domain vertical alignment LCD (MVA LCD) proposed by Sakamoto Fujitsu. Figure 1 is a cross-sectional view of the A and IB diagrams illustrating the mode of operation of the MVA LCD. Fig. 1A shows the state of liquid crystal molecules in the LCD when there is no additional electric field or the electric field present is less than a threshold voltage. The substrate 100 including the color filter (hereinafter referred to simply as the CF substrate 100) and the substrate 102 including the thin film transistor (hereinafter simply referred to as the TFT substrate 102) are opposed to each other in parallel. Protrusions 104 and 106 are formed on the CF substrate 100 and the TFT substrate 102, respectively. The negative dielectric heterotype (hereinafter referred to as negative) liquid crystal molecules 108 are vertically arranged between the CF substrate 100 and the TFT substrate 102, thereby constituting a liquid crystal layer 110. Because of local effects, the liquid crystal molecules 108 near the protrusions 104 and 106 are inclined toward a specific direction, thereby causing a pre-tilts:. Figure IB shows the state of the liquid crystal molecules in the LCD when the additional electric field present is greater than the threshold voltage. Due to the above strong electric field, the orientation of the negative liquid crystal molecules 108 is changed, and the director of the liquid crystal molecules 108 is perpendicular to the direction of the electric field. Therefore, since the tilt directions of the liquid crystal molecules 108 on both sides of the protrusions 104/106 are opposite, there are different liquid crystal alignments in the same pixel. In other words, the protrusions 104/106 in each pixel divide the pixel into two or more domains, thus increasing the viewing angle.

2 is a partial plan view of a conventional MVA LCD 200, showing that the protrusions 104 formed on the CF substrate 100 are a first W-type pattern, and the protrusions 106 formed on the TFT substrate 102 are a second W-type pattern, the first W The pattern is spaced apart from the second W-pattern, and a common line 220 traverses the middle portion of each pixel unit 210. Although it is known that each pixel unit 210 in the MVA LCD 200 is divided into four regions, since the liquid crystal alignment is still inclined only in four specific directions, it is ±45. The contrast with the ± 135 ° orientation is not good.

In U.S. Patent No. 6,532,054, Ohmuro discloses an MVA LCD, and Figures 16 and 17 of the patent teach that the protrusions do not extend in a fixed direction and thus have a full range of viewing angles. Although this method can increase the range of viewing angles, the patent does not teach the MVA LCD structure of the present invention.

[Summary of the Invention]

The main object of the present invention is to provide a wide viewing angle liquid crystal display

Another object of the present invention is to provide a wide viewing angle liquid crystal display having a full viewing angle effect. In order to achieve the above object, the present invention provides a wide viewing angle liquid crystal display having a plurality of pixel units, each of the pixel units including: a first substrate having a first electrode thereon, wherein the first electrode is formed a first protrusion structure constituting a first pattern; a second substrate opposite to the first substrate; and a second electrode on the inner surface, wherein the second electrode is formed with a second pattern a second protrusion structure; and a liquid crystal layer sandwiched between the first substrate and the second substrate; wherein the combination of the first pattern and the second pattern forms a third pattern having at least one intersection.

In order to achieve the above object, the present invention provides another wide viewing angle liquid crystal display having a plurality of pixel units, each of the pixel units including: a first substrate having a first electrode thereon, wherein the first electrode is formed a protrusion structure constituting a first pattern; a second substrate opposite to the first substrate and having a second electrode on an inner surface thereof, wherein the second electrode has a slit structure constituting a second pattern And a liquid crystal layer sandwiched between the first substrate and the second substrate; wherein the combination of the first pattern and the second pattern forms a third pattern having at least one intersection.

In order to achieve the above object, the present invention provides another wide viewing angle liquid crystal display having a plurality of pixel units, each of the pixel units including a first substrate having a first electrode thereon, wherein the first electrode Forming a slit structure constituting a first pattern; a second substrate opposite to the first substrate and having a second electrode on an inner surface thereof, wherein the second electrode has a second pattern a slit structure; and a liquid crystal layer sandwiched between the first substrate and the second substrate; wherein the combination of the first pattern and the second pattern forms a third pattern having at least one intersection.

Compared with the conventional MVA LCD, the wide viewing angle liquid crystal display of the present invention The combination of the protrusion or slit pattern on the first substrate of the W 200 and the protrusion or slit pattern on the second substrate has at least one intersection, such that there are cyclonic liquid crystal molecules arranged around the intersection, Therefore, the effect of the full viewing angle can be achieved.

The above described objects, features, and advantages of the present invention will become more apparent from the description of the preferred embodiments illustrated herein

1A and 1B are schematic cross-sectional views showing the operation mode of a conventional MVA LCD;

Figure 2 shows a partial top view of a conventional MVA LCD;

Figure 3A is a partial cross-sectional view showing a wide viewing angle LCD of the first embodiment of the present invention, taken along the line 3A-3A of Figure 3B;

3B is a top view showing a single pixel unit of the wide viewing angle LCD of the first embodiment of the present invention;

3, 3D and 3E are top views showing a modification of the wide viewing angle LCD of the first embodiment of the present invention;

Figure 4A is a partial cross-sectional view showing a wide viewing angle LCD of a second embodiment of the present invention, taken along the line 4A-4A of Figure 4B;

4B is a top view showing a single pixel unit of the wide viewing angle LCD of the second embodiment of the present invention;

4C, 4D and 4E are views showing a top view of a modification of the wide viewing angle LCD of the second embodiment of the present invention;

Figure 5A is a partial cross-sectional view showing a wide viewing angle LCD of a third embodiment of the present invention, taken along the line 5A-5A of Figure 5B;

5B is a top view showing a single pixel unit of the wide viewing angle LCD of the third embodiment of the present invention; 5, 5D and 5E are top views showing a modification of the wide viewing angle LCD of the third embodiment of the present invention;

Figure 6A is a partial cross-sectional view showing a wide viewing angle LCD of a fourth embodiment of the present invention, taken along the line 6A-6A of Figure 6B;

6B is a top view showing a single pixel unit of the wide viewing angle LCD of the fourth embodiment of the present invention;

6C, 6D and 6E are top views showing a modification of the wide viewing angle LCD of the fourth embodiment of the present invention;

Fig. 7 is a view showing the layout of a projection or slit structure of the wide viewing angle LCD of the present invention. detailed description:

Some embodiments are provided below to illustrate the wide viewing angle LCD of the present invention having a full viewing angle effect.

First embodiment

Fig. 3A is a partial cross-sectional view showing the wide viewing angle LCD of the first embodiment of the present invention, taken along the line 3A-3A of Fig. 3B. Fig. 3B is a top view showing a single pixel unit P of the wide viewing angle LCD of the first embodiment of the present invention. 3C, 3D and 3E are top views showing a modification of the wide viewing angle LCD of the first embodiment of the present invention. It is particularly emphasized here that although the above upper view only shows a single pixel unit P, the wide viewing angle LCD of the present invention may actually comprise a plurality of pixel units P. The pixel unit P is defined by mutually interleaved bus lines, i.e., gate lines and data lines.

Referring to FIGS. 3A and 3B, a first substrate 300 and a second substrate 3 10 are parallel to each other. The first substrate 300 is, for example, a glass substrate including a thin film transistor (not shown), and the second substrate 3 10 includes, for example, A glass substrate having a color filter (not shown). Then, a pixel electrode 302 is formed on the first substrate 300 by depositing and patterning a transparent conductive layer such as indium tin oxide (ITO) or indium zinc oxide (IZO), and the pixel electrode 302 and the film The transistor (not shown) is electrically connected. Next, a first protrusion structure 304 having a first pattern 304 is formed on the pixel electrode 302 by depositing and patterning an insulating layer such as a photoresist. Thereafter, a first alignment film 306 is formed on the pixel electrode 302 and covers the first protrusion structure 304. The first pattern 304 is continuously formed by a first straight line 3041, a second straight line 3042 and a third straight line 3043. The first and third straight lines 3041 and 3043 are parallel to each other but not mutually opposite each other. Yes, the second line 3042 is not parallel or perpendicular to the first and third lines 3041, 3043.

A common electrode 312 is formed on the inner side surface of the second substrate 310, which is, for example, an ITO or IZO layer formed by a deposition method. Then, a second protrusion structure 314 constituting a second pattern 314' is formed on the common electrode 312 by depositing and patterning an insulating layer such as a photoresist. Thereafter, a second alignment film 316 is formed on the common electrode 312 and covers the second protrusion structure 314. The second pattern 314' is continuously formed by a fourth line 3141, a fifth line 3142, and a sixth line 3143. The fourth and sixth lines ₃ 141, 3143 are parallel to each other but not mutually. Yes, and the fifth straight line 3142 is not parallel or perpendicular to the fourth and sixth straight lines 3 141, 3 143.

Next, a negative liquid crystal molecule 318 (Δ ε <0) is filled between the first substrate 300 and the second substrate 310 to form a liquid crystal layer 320.

It is to be noted here that the combination of the first pattern 304' and the second pattern 314 constitutes a third pattern 330 having at least one intersection. That is, the second straight line 3042 and the fifth straight line 3 142 intersect each other vertically, for example. According to the layout of the present embodiment, there are controlled whirlwind-like arrays of liquid crystal molecules 3 18 located around the intersection, whereby the effect of the full viewing angle can be achieved.

It should be further noted that although the protrusion structures 304, 314 of the present embodiment have a triangular cross section, they may actually have a rectangular shape, an elliptical shape, a circular arc shape or the like.

In order to further avoid and solve the problem of the dark area/disclonation 996 which is usually located around the pixel, as shown in FIG. 3B; a modification of the embodiment is proposed to solve the problem of the dark area 996 described above, The reason for the formation of the region 996 and the location thereof are disclosed, for example, in U.S. Patent No. 6,535,054 and U.S. Referring to FIGS. 3C, 3D and 3E, a third protrusion structure 340 is formed on a portion of the common electrode 312 at a position corresponding to the vicinity of the inner side of the portion of the pixel electrode 302 (or the pixel unit P), so that the dark region 996 is caused. The abnormally aligned liquid crystal molecules become an orderly alignment. The third protrusion structure 340 is, for example, a linear protrusion structure as shown in FIG. 3C, or a dot type protrusion structure shown in FIG. 3D, or a line type connection dot-shaped protrusion structure shown in FIG. 3E, or It is also possible to apply the above various types of structures in combination. Further, the third protrusion structure 340 can be replaced with a slit structure, and has an effect of avoiding occurrence of dark areas. Second embodiment

Fig. 4A is a partial cross-sectional view showing a wide viewing angle LCD of a second embodiment of the present invention, taken along the line 4A-4A of Fig. 4B. 4B is a top view showing a single pixel unit P of the wide viewing angle LCD of the second embodiment of the present invention. 4C, 4D and 4E show the broadness of the second embodiment of the present invention A top view of a variation of the viewing angle LCD. It is particularly emphasized here that although the above upper view only shows a single pixel unit P, the wide viewing angle LCD of the present invention may actually contain a plurality of pixel units.

Referring to Figures 4A and 4B, a first substrate 400 and a second substrate 410 are parallel to each other. The first substrate 400 is, for example, a glass substrate including a thin film transistor (not shown), and the second substrate 410 is, for example, a glass substrate including a color filter (not shown). Then, a pixel electrode 402 is formed on the first substrate 400 by depositing and patterning a transparent conductive layer such as ITO or IZO, and the pixel electrode 402 is electrically connected to a thin film transistor (not shown). Next, a protruding structure 404 having a first pattern 404' is formed on the pixel electrode 402 by depositing and patterning an insulating layer such as a photoresist. Thereafter, a first alignment film 406 is formed on the pixel electrode 402 and covers the protrusion structure 404. The first pattern 404 ′ is continuously formed by a first straight line 4041 , a second straight line 4042 and a third straight line 4043 . The first and third straight lines 4041 , 4043 are parallel to each other but not mutually opposite each other. Yes, the second line 4042 is not parallel or perpendicular to the first and third lines 4041, 4043.

A common electrode 412 is formed on an inner side surface of the second substrate 410, which is, for example, an ITO or IZO layer formed by a deposition method. Then, a slit structure 414 having a second pattern 414' is formed in the common electrode 412 via lithography. Thereafter, a second alignment film 416 is formed on the common electrode 412 and covers the slit structure 414. The second pattern 414' is continuously formed by a fourth line 4141, a fifth line 4142, and a sixth line 4143. The fourth and sixth lines 4141, 4143 are parallel to each other but do not face each other. And the fifth straight line 4142 is not parallel or perpendicular to the fourth and sixth straight lines 4141, 4143. Next, a negative liquid crystal molecule 418 (Δ ε <0) is filled between the first substrate 400 and the second substrate 410 to form a liquid crystal layer 420.

It is to be noted here that the combination of the first pattern 404' and the second pattern 414 constitutes a third pattern 430 having at least one intersection. That is, the second straight line 4042 intersects the fifth straight line 4142, for example, perpendicularly. According to the layout of the present embodiment, there are controlled cyclonic-like liquid crystal molecules 418 located around the intersection, whereby the effect of the full viewing angle can be achieved.

In order to further avoid and solve the problem of the dark area 997 (disclination) which is usually located around the pixel, as shown in Fig. 4B; a modification of this embodiment is proposed here to solve the problem of the dark area 997 described above. Referring to FIGS. 4C, 4D and 4E, a second slit structure 440 is formed in a portion of the common electrode 412 at a position corresponding to the vicinity of the inner side of the portion of the pixel electrode 402 (or the pixel unit P), so that a dark region is caused. The abnormally aligned liquid crystal molecules of 997 become an orderly arrangement. The second slit structure 440 is, for example, a linear slit structure as shown in FIG. 4C, or a dot-type slit structure as shown in FIG. 4D, or a linear-shaped dot-shaped slit shown in FIG. 4E. The structure may be combined with the above various types of structures. Further, the second slit structure 440 may be replaced with a protrusion structure, and also has an effect of avoiding occurrence of dark areas. Third Embodiment

Fig. 5A is a partial cross-sectional view showing a wide viewing angle LCD of a third embodiment of the present invention, taken along the line 5A-5A of Fig. 5B. Fig. 5B is a top view showing a single pixel unit P of the wide viewing angle LCD of the third embodiment of the present invention. 5C, 5 and 5E are top views showing a modification of the wide viewing angle LCD of the third embodiment of the present invention. It should be particularly emphasized here that although the above upper view only shows a single pixel unit P, actually the present invention A wide viewing angle LCD can contain many pixel units.

Referring to Figures 5A and 5B, a first substrate 500 and a second substrate 5 10 are parallel to each other. The first substrate 500 is, for example, a glass substrate including a thin film transistor (not shown), and the second substrate 510 is, for example, a glass substrate including a color filter (not shown). Then, a pixel electrode 502 is formed on the first substrate 500 by depositing and patterning a transparent conductive layer such as ITO or IZO, and the pixel electrode 502 is electrically connected to a thin film transistor (not shown). Next, a slit structure 504 having a first pattern 504' is formed in the pixel electrode 502 via lithography. Thereafter, a first alignment film 506 is formed on the pixel electrode 502 and covers the slit structure 504. The first pattern 504 is continuously composed of a first straight line 5041, a second straight line 5042 and a third straight line 5043. The first and third straight lines 5041 and 5043 are parallel to each other but not mutually opposite each other. Yes, the second line 5042 is not parallel or perpendicular to the first and third lines 5041, 5043.

A common electrode 512 is formed on the inner side surface of the second substrate 5 10, which is, for example, an ITO or IZO layer formed by a deposition method. Then, a protrusion structure 514 having a second pattern 514' is formed on the common electrode 5 12 by depositing and patterning an insulating layer such as a photoresist. Thereafter, a second alignment film 5 16 is formed on the common electrode 5 12 and covers the protrusion structure 514. The first pattern 5 14 is continuously formed by a first straight line 5141, a second straight line 5 142 and a third straight line 5 143. The first and third straight lines 5 141 , 5 143 are parallel to each other. However, they do not face each other, and the second line 5 142 is not parallel or perpendicular to the first and third lines 5 141 , 5143 .

Next, a negative liquid crystal molecule 518 (Δ ε <0) is filled between the first substrate 500 and the second substrate 5 10 to form a liquid crystal layer 520. It is to be noted here that the combination of the first pattern 504' and the second pattern 514 constitutes a third pattern 530 having at least one intersection. That is, the second straight line 5042 and the fifth straight line 5 142 intersect each other vertically, for example. According to the layout of the present embodiment, the liquid crystal molecules 5 18 arranged in a whirlwind shape are controlled around the intersection, whereby the effect of the full viewing angle can be achieved.

In order to further avoid and solve the problem of the dark area 998 (disclination) which is usually located around the pixel, as shown in Fig. 5B; a modification of this embodiment is proposed here to solve the problem of the dark area 998 described above. Referring to FIGS. 5C, 5D and 5E, a second protrusion structure 540 is formed on a portion of the common electrode 512 at a position corresponding to the vicinity of the inner side of the portion of the pixel electrode 502 (or the pixel unit P), so that the dark area 998 is caused. The liquid crystal molecules that are not normally aligned become an orderly arrangement. The second protrusion structure 540 is, for example, a linear protrusion structure as shown in FIG. 5C, or a dot-type protrusion structure shown in FIG. 5D, or a line-shaped dot-shaped protrusion structure shown in FIG. 5E. Alternatively, the above various types of structures may be combined and applied. Further, the second protrusion structure 540 can be replaced with a slit crust, and also has an effect of avoiding occurrence of dark areas. Fourth embodiment

Fig. 6A is a partial cross-sectional view showing a wide viewing angle LCD of a fourth embodiment of the present invention, taken along the line 6A-6A of Fig. 6B. Fig. 6B is a top view showing a single pixel unit P of the wide viewing angle LCD of the fourth embodiment of the present invention. 6C, 6D and 6E are top views showing a modification of the wide viewing angle LCD of the fourth embodiment of the present invention. It is particularly emphasized here that although the above upper view only shows a single pixel unit P, the wide viewing angle LCD of the present invention may actually contain a plurality of pixel units.

Please refer to FIG. 6A and FIG. 6B, the first substrate 600 and a second base. The bottoms 610 are parallel to each other. The first substrate 600 is, for example, a glass substrate including a thin film transistor (not shown), and the second substrate 610 is, for example, a glass substrate including a color filter (not shown). Then, a pixel electrode 602 is formed on the first substrate 600 by depositing and patterning a transparent conductive layer such as ITO or IZO, and the pixel electrode 602 is electrically connected to a thin film transistor (not shown). Next, a first slit structure 604 having a first pattern 604' is formed in the pixel electrode 602 via lithography. Thereafter, a first alignment film 606 is formed on the pixel electrode 602 and covers the first slit structure 604. The first pattern 604' is continuously formed by a first straight line 6041, a second straight line 6042, and a third straight line 6043. The first and third straight lines 6041, 6043 are parallel to each other but not facing each other. Yes, the second line 6042 is not parallel or perpendicular to the first and third lines 6041, 6043.

A common electrode 612 is formed on the inner side surface of the second substrate 610, which is, for example, an IT0 or IZ0 layer formed by a deposition method. Then, a second slit structure 614 constituting a second pattern 614' is formed in the common electrode 612 via lithography. Thereafter, a second alignment film 616 is formed on the common electrode 612 and covers the second slit structure 614. The second pattern 614' is continuously formed by a first line 6141, a second line 6142, and a third line 6143. The first and third lines 6141 and 6143 are parallel to each other but not facing each other. Yes, the second line 6142 is not parallel or perpendicular to the first and third lines 6141, 6143.

Next, a negative liquid crystal molecule 618 (Δ ε <0) is filled between the first substrate 600 and the second substrate 610 to form a liquid crystal layer 620.

It is to be noted here that the combination of the first pattern 604' and the second pattern 614 constitutes a third pattern 630 having at least one intersection. That is, the second straight line 6042 and the fifth straight line 6142 intersect each other vertically, for example. According to the layout of the present embodiment, the liquid crystal molecules 618 arranged in a whirlwind shape are controlled around the intersection, whereby the effect of the full viewing angle can be achieved.

In order to further avoid and solve the problem of the dark area 999 (disclination) which is usually located around the pixel, as shown in Fig. 6B; a modification of this embodiment is proposed here to solve the problem of the dark area 999 described above. Referring to FIGS. 6C, 6D and 6E, a third slit structure 640 is formed in a portion of the common electrode 612, and its position corresponds to the vicinity of the inner side of the portion of the pixel electrode 602 (or the pixel unit P), so that a dark region is caused. The 999 abnormally aligned liquid crystal molecules become an orderly arrangement. The third slit structure 640 is, for example, a linear slit structure as shown in FIG. 6C, or a dot-type slit structure as shown in FIG. 6D, or a linear-shaped dot-shaped slit shown in FIG. 6E. The structure may be combined with the above various types of structures. Further, the third slit structure 640 may be replaced with a protrusion structure, and also has an effect of avoiding occurrence of dark areas.

Fig. 7 is a layout view showing a projection or slit structure of the wide viewing angle LCD of the present invention, which shows that the third patterns 330, 430, 530 and 630 in the plurality of pixels P are in a zigzag type arrangement.

The combination of the protrusion or slit pattern of the first electrode on the first substrate of the wide viewing angle liquid crystal display of the present invention and the protrusion or slit pattern of the second electrode on the second substrate has at least one intersection, thereby There are liquid crystal molecules arranged in a whirlwind around the intersection, so that the effect of the full viewing angle can be achieved.

The present invention is disclosed in the above preferred embodiments, and is not intended to limit the scope of the present invention. Any one of ordinary skill in the art can make some of the modifications without departing from the spirit and scope of the invention. Movement and run Description of the reference numerals

100 ~ CF substrate; 102 ~ TFT substrate; 104, 106 ~ protrusion structure; 108 ~ liquid crystal molecules; 110 ~ liquid crystal layer; 210 ~ pixel unit; 220 ~ common line.

300, 400, 500, 600~first substrate; 302, 402, 502, 602~ pixel electrode; 304, 314, 340, 404, 514, 540~ protrusion structure; 306, 406, 506, 606~ first alignment film 310, 410, 510, 610~second substrate; 312, 412, 512, 612~ common electrode; 414, 440, 514, 604, 614, 640~ slit structure; 316, 416, 516, 616~ second Alignment film; 304, 404, 504, 604, 〜 first pattern; 314, 414, 514, 614, 〜 second pattern; 330 to third pattern; 3041, 4041, 5041, 604 a straight line; 3042, 4042, 5042, 6042~ second straight line; 3043, 4043, 5043, 6043~ third straight line; 3141, 4141, 5141, 6141~4 straight line; 3142, 4142, 5142, 6142~5 Straight line; 3143, 4143, 5143, 6143 to sixth straight line; 318, 418, 518, 618~ liquid crystal molecules; 320, 420, 520, 620~ liquid crystal layer; 996, 997, 998, 999~ dark area; P~1 Pixel unit.

304, ~ first pattern; 314, ~ second pattern; 330 ~ third pattern; 3041 ~ first line; 3042 ~ second line; 3043 ~ third line; 3141 ~ fourth line; 3142 ~ fifth line ; 3143 ~ sixth straight line; P ~ pixel unit.

Claims

What is claimed is: 1. A wide viewing angle liquid crystal display having a plurality of pixel units, each pixel unit comprising:

a first substrate having a first electrode thereon, wherein the first electrode is formed with a first protrusion structure constituting a first pattern;

Right

a second substrate opposite to the first substrate and having a second electrode thereon, wherein the second electrode is formed with a second protruding structure constituting a second pattern;

a liquid crystal layer sandwiched between the first substrate and the second substrate; wherein the combination of the first pattern and the second pattern forms a third pattern having at least one intersection.

2. The liquid crystal display according to claim 1, wherein: the first pattern is continuously formed by a first straight line, a second straight line, and a third straight line, and the first and third straight lines are mutually Parallel but not facing each other, and the second straight line is not parallel or perpendicular to the first and third straight lines.

3. The liquid crystal display according to claim 2, wherein - the second pattern is continuously formed by a fourth straight line, a fifth straight line, and a sixth straight line, the fourth and sixth straight lines being parallel to each other However, they do not face each other, and the fifth straight line is not parallel or perpendicular to the fourth and sixth straight lines.

4. The liquid crystal display according to claim 3, wherein the second straight line intersects the fifth straight line perpendicularly.

5. The liquid crystal display of claim 1, wherein - the third pattern in the plurality of pixel units is a zigzag arrangement.

6. The liquid crystal display of claim 1, wherein: The liquid crystal layer contains negative liquid crystal molecules.

7. The liquid crystal display according to claim 6, wherein: the liquid crystal molecules are arranged in a cyclonic arrangement around the intersection.

8. The liquid crystal display according to claim 1, wherein: when the first electrode is a pixel electrode, the second electrode is a common electrode, and when the first electrode is a common electrode, the first The two electrodes are a pixel electrode.

9. The liquid crystal display according to claim 1, further comprising: a third protrusion structure or a slit structure formed on a portion of the second electrode and corresponding to an inner side of a portion around the pixel unit, To avoid dark areas.

10. A wide viewing angle liquid crystal display having a plurality of pixel units, each pixel unit comprising:

a first substrate having a first electrode thereon, wherein the first electrode is formed with a protrusion structure constituting a first pattern;

a second substrate opposite to the first substrate and having a second electrode on an inner side surface thereof, wherein the second electrode has a slit structure constituting a second pattern;

a liquid crystal layer sandwiched between the first substrate and the second substrate;

The combination of the first pattern and the second pattern constitutes a third pattern having at least one intersection.

1 . The liquid crystal display according to claim 10, wherein: the first pattern is continuously formed by a first straight line, a second straight line, and a third straight line, wherein the first and third straight lines are parallel to each other but They do not face each other, and the second line is not parallel or perpendicular to the first and third lines.

12. The liquid crystal display according to claim 1, wherein: the second pattern is continuously formed by a fourth straight line, a fifth straight line, and a sixth straight line The lines are formed such that the fourth and sixth straight lines are parallel to each other but do not face each other, and the fifth straight lines are not parallel or perpendicular to the fourth and sixth straight lines.

13. The liquid crystal display according to claim 12, wherein the second straight line intersects the fifth straight line perpendicularly.

14. The liquid crystal display of claim 10, wherein: the third pattern in the plurality of pixel units is a zigzag arrangement.

15. The liquid crystal display of claim 10, wherein: the liquid crystal layer comprises negative liquid crystal molecules.

16. The liquid crystal display according to claim 15, wherein: the liquid crystal molecules are arranged in a cyclonic arrangement around the intersection.

The liquid crystal display according to claim 10, wherein: when the first electrode is a pixel electrode, the second electrode is a common electrode, and when the first electrode is a common electrode, the first The two electrodes are a pixel electrode.

18. The liquid crystal display according to claim 10, further comprising: a second protrusion structure or a second slit structure formed on a portion of the second electrode and corresponding to an inner side of a portion around the pixel unit , to avoid dark areas.

19. A wide viewing angle liquid crystal display having a plurality of pixel units, each pixel unit comprising:

a first substrate having a first electrode thereon, wherein the first electrode is formed with a first slit structure constituting a first pattern;

a second substrate opposite to the first substrate and having a second electrode on an inner side surface thereof, wherein the second electrode has a second slit structure constituting a second pattern;

a liquid crystal layer sandwiched between the first substrate and the second substrate; The combination of the first pattern and the second pattern constitutes a third pattern having at least one intersection.

The liquid crystal display according to claim 19, wherein: the first pattern is continuously formed by a first straight line, a second straight line and a third straight line, and the first and third straight lines are mutually Parallel but not facing each other, and the second straight line is not parallel or perpendicular to the first and third straight lines.

The liquid crystal display according to claim 20, wherein: the second pattern is continuously formed by a fourth straight line, a fifth straight line, and a sixth straight line, and the fourth and sixth straight lines are parallel to each other However, they do not face each other, and the fifth straight line is not parallel or perpendicular to the fourth and sixth straight lines.

22. The liquid crystal display of claim 21, wherein - the second straight line intersects the fifth line perpendicularly.

23. The liquid crystal display of claim 19, wherein: the third pattern in the plurality of pixel units is a zigzag arrangement.

24. The liquid crystal display of claim 19, wherein: the liquid crystal layer comprises negative liquid crystal molecules.

25. The liquid crystal display according to claim 24, wherein: the liquid crystal molecules are arranged in a cyclonic arrangement around the intersection.

The liquid crystal display according to claim 19, wherein: when the first electrode is a pixel electrode, the second electrode is a common electrode, and when the first electrode is a common electrode, the first The two electrodes are a pixel electrode.

27. The liquid crystal display according to claim 19, further comprising: a third slit structure or a protrusion structure formed on a portion of the second electrode and corresponding to an inner side of the portion around the pixel unit, Avoid Dark area