TW493098B - Liquid crystal display - Google Patents

Abstract

The present invention provides a liquid crystal display device permitting to widen a field of view without decrease in numerical aperture. A source line 15 and a gate line 16 are arranged intersecting at right angles and areas divided by these wiring to form picture elements 17a, 17b. A thin film transistor 19 is provided in the neighborhood of each intersection of the source line 15 and the gate line 16, and an oriented electrode 18 composed of a part of the gate line 16 extended along the source line 15 is provided for each picture element separately between the adjacent picture elements arrayed in the direction of the source line 15. And, these oriented electrodes 18 are juxtaposed along and on both sides of every other source line 15 between adjacent two picture elements.

Description

Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives 493098 A7 ____ B7 V. Description of the Invention (1) (Field of Invention) The present invention relates to a liquid crystal display with a small viewing angle dependency and a good visibility at the viewing angle. Device. (Prior art) Generally, in the liquid crystal display device in the TN mode, the viewing angle dependency becomes a problem. Fig. 25 shows the general viewing angle dependence of a liquid crystal display device in the TN mode. In Fig. 25, the area surrounded by the curve shows a range of contrast (C R) 1 0 or more. As shown in the figure, the liquid crystal display device in the TN mode is a certain degree of good visibility from the left and right directions, but the poor visibility from the up and down direction, especially from the upper direction, is a puzzling fact. Against this background, various proposals have recently been made to increase the viewing angle of liquid crystal display devices. One of them is the divisional structure of the pixel unit. When the voltage is applied to each pixel, it has a structure in a field in which the liquid crystal molecules are raised in different directions. For example, a pixel The alignment film which is divided into two and two divided pixels is respectively subjected to different alignment treatments, thereby realizing this structure. However, for fine pixels to perform alignment processing in each of the divided areas, it requires a very complicated operation. 'Therefore, the engineering is complicated, and the yield rate is also easily reduced. In addition, in order to realize other methods of widening the viewing angle, there is a method of adhering a retardation film having a function of widening the viewing angle to a liquid crystal cell. However, the film is also expensive and has a problem of increasing the manufacturing cost. (Please read the notes on the back before filling this page)

This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -4- Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 493098 A7 ___B7_ V. Description of the invention (2) Furthermore, there are some The common electrode on the opposite substrate side is set on the pixel electrode side. An electric field parallel to the substrate is applied to the liquid crystal molecules, and the wide field angle of the Im-Plane Switching IPS is driven in the plane parallel to the substrate. Technology proposal. However, in the I PS structure, the arrangement of the electrodes in the liquid crystal cell is complicated, and there is a problem that the aperture ratio is reduced. Other means for achieving a wide field of view include a so-called liquid crystal display device having an alignment control electrode provided around four sides of a pixel electrode, which is a so-called fence electrode. Figures 23 and 24 show the structure of one pixel of a liquid crystal display device provided with a barrier electrode. As shown in FIG. 23, the gate wiring 201 (scanning wiring) and the source wiring 202 (signal wiring) are arranged in a crosswise manner, and a thin film transistor 2 03 is arranged near the intersection. A rectangular pixel electrode 2 0 4 connected to the drain electrode of the thin film transistor 2 0 3 is provided in the area defined by these gate wirings 2 0 1 and the source electrode 2 0 2. Alignment electrodes 205 are provided on four sides of the element electrode 204. Let's look at the cross section of XXIV-XXIV line of view 23, that is, as shown in FIG. 24, a pixel electrode 204 and an alignment control electrode 205 are respectively provided on one substrate 206 through an insulating film 207. The liquid crystal layer 208 is provided with a counter electrode 2 10 on the substrate 209 on the other side which the substrate 206 faces. On the counter electrode 2 10, as shown in FIG. 23, an X-shaped window 2 1 1 is formed along the diagonal of the pixel. In this liquid crystal display device, as shown in FIG. 24, an electric field is naturally generated between the pixel electrode 204 opposite to the liquid crystal layer 208 and the opposite electrode 210. On the other side, the pixel electrode 2 0 4 and the alignment control circuit

This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ITI -------------------- Order --------- (Please read the precautions on the back before filling this page) 493098 A7 B7 V. Description of the invention (3) Electric fields will also be generated between the poles 205, and these electric fields control the tilt direction of the liquid crystal molecules. In this example, the alignment control electrode 2 05 is arranged around the four sides of the pixel electrode 204, so the liquid crystal molecules near the sides of the pixel electrode 204 are tilted toward the ground along the edge thereof. The direction of the electric field of the configured alignment control electrode 205 (the direction shown by the arrow in Fig. 23), that is, within two pixels, with 2 diagonal lines as the boundary, resulting in four areas with different alignment directions of the liquid crystal, so that It averages out-of-line contrasts caused by various alignment directions in pixels, so the viewing angle can be enlarged. (Problems to be Solved by the Invention) However, in the above-mentioned liquid crystal display device provided with the above-mentioned fence electrode, the disorder of the alignment of liquid crystal molecules (hereinafter referred to as "alignment disorder" is abbreviated in the realm of four fields in which the alignment directions in pixels are different). ") And light leakage may occur in this part. Therefore, it is necessary to take countermeasures such as an X-shaped black mask on the opposite substrate side to prevent the light leakage, etc., and this reverse side will reduce the aperture ratio, especially it is necessary to install such a black mask in the center of the pixel. Unfavorable situation. In other words, because the fence electrode is used to obtain a wide field of view, the problem of a decrease in the aperture ratio cannot be avoided. The present invention has been made in order to solve the above-mentioned problems, and an object thereof is to provide a liquid crystal display device capable of achieving a wide viewing angle without reducing the aperture ratio. (Means for Solving the Problem) In order to achieve the above-mentioned object, the liquid crystal display device of the present invention is provided with a liquid crystal layer between a pair of substrates. Among these pair of substrates, the paper size of one of the substrates is applicable to the Chinese National Standard (CNS) A4. Specifications (210 X 297 mm) (Please read the notes on the back before filling out this page) -ϋ · 1 ϋ ϋ ff— · ϋ · 1 ^ dJ · · ϋ ϋ ϋ I · ϋ n ϋ I-Wisdom of the Ministry of Economic Affairs Printed by the staff of the Property Bureau and printed by the cooperative -6-493098 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 _B7__ V. Description of the invention (4) The opposite side of the substrate is provided with a plurality of signal wirings and sweeps. Sight wiring, the areas delineated by these wirings are pixels, and thin film transistors are set near the intersections of the signal wirings and scanning wirings. At the same time, the thin film transistors connected to the pixels are connected. The alignment electrodes that apply an electric field to the liquid crystal layer between the pixel electrodes are two pixels adjacent to each other with signal wiring, and are arranged along the signal wiring on both sides of the signal wiring. Is its character. Regardless of any liquid crystal display device, when an alignment electrode is added to a pixel electrode on one of the substrates, the electric field generated between the pixel electrode facing the liquid crystal layer and the opposite electrode is set between the pixel electrode and the opposite electrode. The pixel electrode is pulled by the alignment electrode on the same substrate, and the electric field is inclined toward the alignment electrode side. Therefore, the liquid crystal display device of the present invention is such that the alignment electrodes in two pixels adjacent to each other with signal wiring are arranged on both sides of the signal wiring along the signal wiring ground. Looking at each pixel, the electric field is oriented toward the alignment electrode side, that is, the signal wiring side toward the center of the two pixels is inclined in opposite directions. The same applies to the relationship in which the electric field is adjacent to two pixels tilted in opposite directions, but the two pixels adjacent to each other are not connected to the signal wiring provided on the alignment electrode. Therefore, the asymmetrical contrast of the alignment direction of the liquid crystal is averaged by the two pixels adjacent to each other by the signal wiring, so that the structure of the liquid crystal display device as a whole can widen the viewing angle. Furthermore, the liquid crystal display device of the present invention does not have the disorder of the alignment in the center of the pixel, as in the conventional liquid crystal display device provided with a fence electrode. Even if the phenomenon of the alignment disorder occurs, it will only occur in the present. Paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ------------- # -------- Order --------- Line 1 (Please read the precautions on the back before filling out this page) Printed by the Employees 'Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 493098 A7 B7 V. Description of the invention (5) The wiring place along the signal between adjacent pixels' However, according to this location, a black mask is generally provided in a liquid crystal display device. Therefore, the phenomenon of alignment disorder caused by the constitution of the present invention does not adversely affect the aperture ratio. Therefore, the liquid crystal display device according to the present invention has the effect that a wide viewing angle can be achieved without reducing the aperture ratio. In addition, the shape of the above-mentioned alignment electrode itself may adopt various shapes described below. For example, the alignment electrode system may be provided separately from the signal wiring or the scanning wiring, and a configuration in which a plurality of pixels arranged and arranged along the signal wiring are extended in the signal wiring extension direction may be configured. In contrast, the alignment electrode is not a separate arrangement, and a part of each scanning wiring is formed by a portion extended along each signal wiring, and the scanning line and the scanning line will not be short-circuited. It is also possible to isolate the adjacent pixels in the signal wiring direction arranged side by side. In the former case, since the alignment electrode is provided separately from the signal wiring or the scanning wiring, the alignment electrode must be used as a ground wire, for example, and a certain potential such as the ground potential must be constantly applied to the alignment electrode. It is also possible to apply a negative potential without applying a ground potential. In either case, this configuration causes a potential difference between the pixel electrode and the alignment electrode, so that the electric field generated between the pixel electrode and the counter electrode can be tilted to the side of the alignment electrode. In the latter case, since the alignment electrode is formed integrally with the scanning electrode, as long as the pattern of the scanning wiring of the conventional liquid crystal display device is given (please read the precautions on the back before filling this page) — — — — — — — ^ 0 — — — — — — — — Line · This paper size applies to China National Standard (CNS) A4 (210 X 297 male *) -8- Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and Consumer Cooperatives 493098 A7 _ B7 V. Description of the invention (6) It is enough to change the design, and it will not be more complicated than the manufacturing process of the user by providing the alignment electrode. Alternatively, the alignment electrodes may be arranged along the signal wiring and the scanning wiring, and a zigzag arrangement may be used. With this configuration, not only the two pixels adjacent to each other by the signal wiring, but also the two pixels adjacent to each other by the scanning wiring, the oblique direction of the electric field becomes the opposite direction, and the oblique direction of the liquid crystal molecules also becomes In the opposite direction, the effect of "asymmetric contrast is averaged in two adjacent pixels and the viewing angle is widened" is the same as above. Therefore, as a whole, the effect of expanding the viewing angle is more significant. Regarding the phenomenon of misalignment that occurs between two pixels adjacent to each other along the scanning wiring while holding the scanning wiring, the black mask is not affected and the aperture ratio is not affected. Furthermore, a capacity electrode connected to the pixel electrode is provided to face the alignment electrode via an insulating film, and the capacity electrode, the insulation film, and the alignment electrode may be used to form a storage capacity portion. For liquid crystal display devices, it is necessary to maintain the storage capacity of the charge of the pixel electrode. When the above structure is adopted, for example, the capacity electrode is on the same layer as the signal wiring, and the alignment electrode is on the same layer as the scanning electrode. To form. Therefore, a new layer is required in order to form the accumulation capacity portion, which does not complicate the manufacturing process. With the configuration described above, the storage capacity portion can be easily formed by simply changing the mask pattern. Furthermore, the upper part of the counter electrode on the substrate opposed to the substrate on one side of the base is located along the peripheral edge portion located on the side opposite to the side on which the electrode is arranged on the pixel. The paper size is set according to the Chinese National Standard (CNS) A4 (210 X 297 mm) ~ (Please read the precautions on the back before filling this page)

· N n ϋ ϋ · 1 I ^ OJ · Ml ϋ n I Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 493098 A7 B7 5. The invention description (7) is also acceptable. In the liquid crystal display device of the present invention, the bending situation of the electric field is changed by the potential difference between the pixel electrode and the counter electrode or between the pixel electrode and the alignment electrode, or the relative positional relationship between these electrodes, and the tilt of the liquid crystal molecules is changed. Will change. Therefore, the tilt of the liquid crystal molecules can be adjusted to control the viewing angle dependency of the contrast. Therefore, as described above, in the alignment electrode, when the window is formed on the peripheral edge portion on the side opposite to the side where the alignment electrode is provided, it is because the end portion on the side away from the alignment electrode of the pixel electrode is located on the end portion without the counter electrode directly above it. Existence, so the electric field generated between the pixel electrode and the counter electrode is inclined to the alignment electrode side more than the case where there is no window. As described above, by providing a window on the counter electrode and further optimizing the size of the window, the tilt of the liquid crystal molecules can be changed, and the visual field dependency of the contrast can be controlled. Furthermore, the other liquid crystal display device related to the present invention is that a liquid crystal display device is provided with a liquid crystal layer between a pair of substrates, and among these pair of substrates, the pair of substrates of one of them is directed upwardly and mutually orthogonally. Multiple signal wirings and multiple scanning wirings. The areas delimited by these wirings become two pixels that are isolated. Thin film transistors are set near the intersections of the signal wirings and scanning wirings. Among the two isolated pixels adjacent to each other by signal wiring, the scanning wiring corresponding to each of the pixels is a feature that is configured by aligning the isolated lines between the pixels. The "isolated line" referred to in this specification is that, in the constitution of the present invention, there are two pixels in the area defined by the signal wiring and the scanning wiring ------------ # -------- Order --------- line t (Please read the notes on the back before filling this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 (Mm) _ 10- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 493098 A7 _________ B7 5. The invention description (8) exists. Since there is no wiring between these pixels, the center line (imaginary line) in the area that becomes the boundary of each pixel is called the isolation line. In the above-mentioned liquid crystal display device, for example, the pixel electrode is provided with a potential of about 1 to 10 V, and the scanning voltage without a scanning voltage state is provided with -6 V. The pixel electrode and the scanning wiring are There is a large potential difference between them. Therefore, the electric field generated between the opposing pixel electrode and the opposing electrode with the liquid crystal layer narrowed is pulled by the scanning wiring, and the electric field is inclined to the side of the scanning wiring. When the scanning wiring is applied to the scanning wiring, The potential difference between the pixel electrode and the scanning wiring becomes smaller when the scanning voltage is applied, but the scanning voltage is applied instantaneously in the form of a pulse, so it will not affect the alignment of the liquid crystal. Therefore, in other liquid crystal display devices of the present invention, among the two isolated pixels adjacent to each other along the signal wiring, the scanning wiring corresponding to these pixels is symmetrical with the isolation line between the pixels as the center. The ground is configured so that the electric field is tilted in the opposite direction toward the scanning wiring side of each pixel, and the liquid crystal molecules rise obliquely in response to the electric field tilted in each direction. The asymmetrical contrast caused by the alignment direction of the liquid crystal by this action is averaged by the two pixels adjacent to each other along the signal wiring, so that the overall viewing angle can be enlarged by the structure of the liquid crystal display device. Furthermore, in other liquid crystal display devices of the present invention, as in the conventional liquid crystal display device provided with a fence electrode, the disorder of the alignment occurs in the center of the pixel. Even if the phenomenon of the disorder of the alignment occurs, it will only occur in the Places along the signal wiring between adjacent pixels'. However, according to the paper size of this place, the Chinese National Standard (CNS) A4 specification (210 X 297 mm) is applicable. "11-(Please read the precautions on the back before (Fill in this page)

493098 A7 _ B7 V. Description of the invention (9) Generally, the black mask is usually provided in the liquid crystal display device. Therefore, the disorder of the alignment caused by the constitution of the present invention does not adversely affect the aperture ratio. Therefore, the liquid crystal display device according to the present invention has the effect that a wide viewing angle can be achieved without reducing the aperture ratio. Furthermore, according to the present invention, it is not necessary to particularly provide an alignment electrode, so that the above-mentioned effects can be obtained with an extremely simple wiring configuration. It is also possible to form a structure in which a window is provided along the above-mentioned isolation line on the counter electrode provided on the substrate on the other side and on the other substrate. In the above-mentioned liquid crystal display device, from the potential difference between the pixel electrode and the counter electrode, or the potential difference between the pixel electrode and the alignment electrode, the relative positional relationship of these electrodes and the bending of the electric field will change, and the tilt of the liquid crystal molecules It will change, and the viewing angle dependence of contrast can be controlled by adjusting the tilt of this liquid crystal molecule. Therefore, as described above, in a pixel circuit, when a window is formed along the opposite electrode along the above-mentioned isolation line located on the opposite side of the scanning wiring, the end portion on the side of the isolation line of the pixel electrode is directly above it. There is no counter electrode, so the electric field generated between the pixel electrode and the counter electrode is more inclined to the scanning line side than when the window is not opened. As described above, a window is provided on the counter electrode, and the size of the window is optimized to change the tilt state of the liquid crystal molecules, and the dependence of the viewing angle of the contrast can be controlled. (Implementation form of the invention) This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -12-(Please read the precautions on the back before filling this page)-# ________ Order _________ Line Printed by the Employees' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 493098 A7 B7 V. Description of the Invention (10) The first embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG. 1 is a plan view showing a pixel structure of the entire liquid crystal display device of this embodiment, FIG. 2 is an enlarged view, FIG. 3 is a cross-sectional view cut by a part of a thin film transistor, and FIG. 4 is a portion of a pixel electrode A cut-away sectional view. The morphology of this embodiment is an example in which the thin film transistor is a reverse staggered type, and the alignment electrode that applies an electric field to the liquid crystal layer between the pixel electrodes is formed on the same layer as the gate wiring. FIG. 1 is a diagram for explaining the characteristic points of the liquid crystal display device of this embodiment. The liquid crystal display device of this example is provided with a plurality of source lines 15 (signal wiring) and a plurality of gate lines 1 orthogonal to each other. 6 (scanning wiring), and the area demarcated by these wirings 15 and 16 becomes pixel 17 and thin film transistors are arranged near the intersections of source line 15 and gate line 16 (this figure) The illustration is omitted), the alignment electrode 18 formed by a portion of each of the gate lines 16 extending along each of the source lines 15 is located along the source line 15 Seventeen adjacent pixels 17 are arranged in parallel in the direction, and each pixel 17 is provided in isolation. In addition, the alignment electrode 18 is located on two sides of the source line 15 among the two pixels 17 adjacent to each other and is adjacent to the source line 15. . The portions of the alignment electrodes 18 provided on both sides are formed in a staggered pattern along the direction of the source line 15 (the longitudinal direction in FIG. 1). FIG. 2 is an enlarged view of a part of FIG. 1. Use this figure to see the plane structure of this liquid crystal display device in detail. That is, the source line 15 and the gate line 16 are arranged at right angles to each other. The area defined by these wirings 15 and 16 is Become the long side of the gate extending from the source line 15 (Please read the precautions on the back before filling this page) -41 ^ 1 -------- Order-II mmam I nn I Line 1 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the paper size is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) · 13-493098 A7 B7 V. Description of the invention (11) (Please read "Notes on the back" first Please fill in this page for more details) The direction of the extension of the polar line 16 is the rectangular pixel 17 of the short side. A thin film transistor 19 is provided near each intersection of the source line 15 and the gate line 16 and the source electrode 20 of the thin film transistor 19 is extended from the source line 15 and the gate line 16 respectively. And gate electrode 2 1. A pixel electrode 24 is connected to the drain electrode 22 of the thin film transistor 19 through a contact hole 23. Further, on each pixel 17, an alignment electrode 18 formed by extending a part of each gate line 16 along the source line 15 is provided. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Furthermore, it looks at two pixels 17 adjacent to a source line 15. That is, for example, in the four pixels in FIG. 2, the upper left pixel 1 7 a is an alignment electrode 18 on the right side of the pixel, and the upper right pixel 1 7 b is an alignment electrode 1 8 Located on the left side of the pixel, if these two pixels 1 7 a and 1 7 b are adjacent to each other with a source line 15, the alignment electrodes 18 are arranged with pixels 1 7 a and 17 respectively. the opposite side of b. As shown in the above-mentioned adjacent pixels 17a, 17b, the arrangement of the alignment electrodes 18 on the opposite side is the same. The bottom left pixel and the bottom right pixel in FIG. 1 are the same, and further along the source line 15 The same is true for the two pixels in the arrangement, such as the upper left pixel and the lower left pixel. FIG. 3 shows a cross-sectional structure of the liquid crystal display device of this embodiment. As shown in FIG. 3, the liquid crystal display device is provided with a thin film transistor 19 and a pixel electrode 2 4 on the surface of the first substrate 25. The alignment electrode 18 is provided with a color filter 27, a black mask 28, and a counter electrode 29 on the surface of the second substrate 26. The paper size is set between the substrates 25 and 26 and is applicable to the country of China. Standard (CNS) A4 specification (210 X 297 mm) _ 493098 A7 _ B7 V. Description of the invention (12) Placing a liquid crystal layer 41. The liquid crystal used in this example is either a negative dielectric constant anisotropy or a positive dielectric anisotropy, and the illustration of the alignment film is omitted here. (Please read the precautions on the back before filling in this page.) Also, in the thin film transistor 19, a gate electrode 2 1 derived from a gate line 16 is formed on the first substrate, and A gate insulating film 30 made of S i 0 or S i NX is formed to cover this gate electrode 21. A gate insulating film 3 0 is provided above the gate electrode 21. There is a semiconductor layer 31 made of amorphous silicon (a-Si), and an n + type a-S i layer 32 is provided on the semiconductor layer 31, and a drain made of a conductor such as aluminum is formed on the semiconductor layer 31 The electrode electrode 2 2 and the source electrode 20 derived from the source line 15. In addition, these drain electrodes 22 are covered, and the source electrodes 20 and the like form a passivation film 33 made of Si02 or SiNx and the like, and on the drain electrodes 22, a passivation film 33 is formed to pass through The contact hole 2 3 is formed on the passivation film 33 with a pixel electrode 24 made of transparent conductive material such as ITO electrically connected to the drain electrode through the contact hole 23. On the side of the gate electrode 21, an alignment electrode 18 on the same layer as the gate electrode 21 is provided. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. In the liquid crystal display device of this embodiment, an electric field is applied between the pixel electrode 2 4 and the counter electrode 29 facing the liquid crystal layer 41 and facing each other. Drives liquid crystal molecules. However, the normal pixel electrode 24 shows a potential of 1 to 10 V, and the alignment electrode 18 is displayed in a state that a scanning voltage is applied to the gate line 16 leading to the alignment electrode 18- A potential of about 6 V 'causes a large potential difference between the pixel electrode 24 and the alignment electrode 18. The result is that the electric field E between the pixel electrode 24 and the counter electrode 29 is determined by the alignment electrode 18 provided on the same substrate. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 cm). 15) 493098 A7 __________ B7 V. Description of the invention (13) Traction, the electric field E is inclined on the 18 side of the alignment electrode. (Please read the precautions on the back before filling in this page.) At this time, the left-right direction in Figure 4 is the short-side direction of the pixel electrode 24, so the electric field E is particularly easy to tilt. When the scanning voltage is applied to the gate line 16, the potential difference between the pixel electrode 24 and the alignment electrode 18 will decrease. However, the scanning voltage is applied in an instantaneous pulse shape, so the alignment direction of the liquid crystal No effect. Therefore, when looking at two pixels 17 adjacent to each other with a source line 15 in mind, since the positions of the alignment electrodes 18 in pixels 17 are opposite to each other, the direction of the inclination of the electric field E is also Would be the opposite. As shown by arrow E in FIG. 1, the liquid crystal molecules corresponding to the electric field E inclined in various directions will rise obliquely. Therefore, the asymmetrical contrast system that originates from the alignment direction of the liquid crystal is that the two pixels 1 7 adjacent to each other while holding a source line 15 are averaged. By virtue of the structure of the liquid crystal display device as a whole, Expand the viewing angle. Furthermore, in this embodiment, it can be clearly seen from FIG. 1 that the inclination of the electric field E will also show the opposite direction for the two pixels 17 arranged along the source line 15 direction, so here The two pixels 17 can also average the contrast, and the effect of expanding the viewing angle will be greater. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the liquid crystal display device of the present invention will not have the disorder of alignment in the center of the pixel, as in the conventional liquid crystal display device provided with a fence electrode, even if it occurs. The disorder of the alignment phenomenon can only occur in the place along the signal wiring between adjacent pixels. However, according to this place, the black cover is usually installed in the liquid crystal display device. Therefore, according to the constitution of the present invention, The cause of the disordered alignment phenomenon does not have an adverse effect on the aperture ratio. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -16-493098 A7 B7 V. Description of the invention (14) Therefore, when the liquid crystal display device according to the present invention does not reduce the aperture ratio, Can achieve the effect of wide field of view. In the liquid crystal display device according to this embodiment, each alignment electrode 18 is formed integrally with the gate line 16. Therefore, it is only necessary to change the pattern shape of the gate line of the conventional liquid crystal display device. Since the alignment electrode 18 is provided, the manufacturing process is more complicated than in the past. Furthermore, in this embodiment, as shown in FIG. 1, the arrangement of the alignment electrode 18 is arranged in a staggered manner when viewed from the pixels 17 arranged in the direction of the source line 15. The result is arranged on the two pixel electrodes 17 in the source line direction 15 to obtain an asymmetrical contrast and the effect of averaging. However, if the effect is not obtained, that is, as shown in FIG. 5, the portions of the alignment electrode 18 arranged on both sides are arranged linearly in the direction of the pixels 17 arranged in the direction of the source line 15 . In this configuration, the contrast of two pixels 17 adjacent to each other with the source line 15 can be averaged. Of course, the liquid crystal display device as a whole can obtain the effect of widening the viewing angle. Next, a second embodiment of the present invention will be described with reference to Figs. Fig. 6 is a plan view showing the structure of one pixel of the liquid crystal display device of this embodiment. Fig. 7 shows a cross-sectional view of a pixel electrode section. The difference between the liquid crystal display device of this embodiment and the first embodiment is that a capacity electrode is provided, and the same alignment electrode of the first embodiment is also used as an electrode of one of the storage capacity portions, thereby forming a storage capacity portion. In FIG. 6, the constituent elements common to FIG. 1 to FIG. 4 in FIG. 7 are given the same reference numerals, and detailed descriptions thereof are omitted. This paper size applies to China National Standard (CNS) A4 specification (210 X 297 public love). 17- (Please read the precautions on the back before filling this page)

# -------- Order I Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Employee Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by 493098 A7 _ B7 V. Description of the Invention (15) Liquid crystal display device of this embodiment As shown in FIG. 6 and FIG. 7, a part of the gate electrode 16 extending along the source line 15 and extending above the alignment electrode 18 is provided with a gate insulating film 3 0 The capacity electrodes 34 formed in the same layer as the source lines 15 are formed in the same shape as the alignment electrodes 18 and 18. Thus, a passivation film 3 3 is formed by covering the capacity electrode 34 and the source line 15 according to its lateral position. A contact hole 35 is formed in the capacity electrode 34 and penetrates the passivation film 33, and the capacity electrode 34 and the pixel electrode 24 are electrically connected through the contact hole 35. Therefore, the capacity electrode 3 4, the gate insulating film 30, and the alignment electrode 18 constitute a storage capacity portion 36. For a liquid crystal display device, after one gate line is scanned, the next scan is performed. In the meantime, a storage capacity portion that holds the charge of the pixel electrode is indispensable. In this embodiment, the storage capacity portion 36 is composed of the capacity electrode 3 4 and the gate insulating film 3 0 'alignment electrode 1 8 Among the electrodes that are constituted and constitute capacity, the capacity electrode 34 is formed on the same layer as the source line, and the alignment electrode 18 is formed on the same layer as the gate line 16. Therefore, it is not necessary to use a new layer in order to form the accumulation capacity portion 36. Does not complicate the manufacturing process. As described above, when the liquid crystal display device according to this embodiment has the same effect as that of the first embodiment, the wide field of view angle can be expected without reducing the aperture ratio, and only a simple mask pattern can be changed. The design can easily form the effect of the storage capacity portion. Next, a third embodiment of the present invention will be described with reference to Figs. This paper size is in accordance with China National Standard (CNS) A4 specification (210 X 297 male *). 18- — — — — — — — — — — — — — 111111 — 11111111 < Please read the note on the back first Please fill in this page again for matters) 493098 A7 _____ B7 V. Description of the invention (16) Figure 8 is a plan view showing the pixel structure of the liquid crystal display device of this embodiment. Fig. 9 is a cross-sectional view showing a portion of a pixel electrode cut away. The liquid crystal display device of this embodiment has the same structure on the first substrate side as that of the first embodiment. The difference from the first embodiment is that the window is provided on the counter electrode on the second substrate side. Therefore, in FIG. 8 and FIG. 9, the same components as those in FIG. 1 to FIG. 4 are denoted by the same reference numerals, and detailed descriptions thereof are omitted. In the liquid crystal display device of the present invention, the potential difference between the pixel electrode and the counter electrode or between the pixel electrode and the alignment electrode, the relative positional relationship between these electrodes and the bending of the electric field will change, and the tilt of the liquid crystal molecules Things will change. Therefore, the viewing angle dependence of contrast can be controlled by adjusting the tilt of the liquid crystal molecules. At this time, when only the structure of the first embodiment is used, the amount of tilt of the liquid crystal molecules is insufficient. If a larger amount of tilt is desired, the structure of this embodiment shown in FIG. 8 and FIG. 9 is used to make the pixel electrode It is sufficient to form a window 3 7 in the opposite electrode 2 9 which is opposite to the pixel electrode 24 and located on the opposite side of the alignment electrode 18 from the edge electrode. When the window 37 as described above is formed on the counter electrode 29, that is, as shown in FIG. 9, the upper part of the end of the pixel electrode 24 which is away from the counter electrode 18 is a counter electrode. 2 9 state of existence 'so the electric field E > generated between the pixel electrode 24 and the counter electrode 2 9 is' inclined when compared with the case where the window is not opened (the electric field E in FIG. 4). In the case of the alignment electrode 18 side. The window 3 7 is set on the counter electrode 2 9 as described above (please read the precautions on the back before filling this page) — — — — — — — — Line-Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives This paper is suitable for China National Standard (CNS) A4 Specification (210 X 297 mm) -19- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 493098 A7 B7 V. Description of Invention (17) 'Further optimize the size of window 3 7 The tilt of the liquid crystal molecules can be changed to control the viewing angle dependency of the contrast. Moreover, as shown in FIG. 8, the counter electrodes 29 are not provided for all the plural pixels, but as shown in FIG. 10, the divided counter electrodes 2 9 a are provided for each pixel, and this divided pair It is also possible to cut a portion of the electrode 2 9 a along the source line 15 as a window. A fourth embodiment of the present invention will be described with reference to Figs. 11 to 14. FIG. 11 is a plan view showing the overall pixel structure of the liquid crystal display device of this embodiment, and FIG. 12 is an enlarged view. FIG. 13 is a cross-sectional view cut by a part of a thin film transistor. Sectional view of a pixel electrode partially cut away. The difference between the liquid crystal display device of this embodiment and the first embodiment is that in the first embodiment, the alignment electrode system and the gate line are formed on the same layer, and the alignment electrode system and the source electrode in this embodiment are opposite. Lines and gate lines are points that are separately set up separately. Therefore, in FIG. 11 and FIG. 14, the same components as those in FIG. 1 and FIG. 4 are given the same reference numerals, and detailed descriptions thereof are omitted. FIG. 11 is a diagram for explaining the characteristic points of the liquid crystal display device of this embodiment. The liquid crystal display device of this example is provided with a plurality of source lines 15 and a plurality of gate lines 16 ′ orthogonal to each other. The area demarcated by these wirings 1 5 '1 6 is pixel 1 7, and thin film transistors are arranged near the intersections of source line 15 and gate line 16 (the illustration is omitted in this figure). Dimensions are applicable to China National Standard (CNS) A4 specifications (210 X 297 public love) -20-— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — (--------------------) to apply the Chinese National Standard (CNS) A4 specification (210 X 297) Read the notes on the back and fill in this page again) 493098 A7 _! _ B7 V. Description of the invention (18) Alignment electrodes 3 8 formed with 'source line 1 5 and gate line 16 6 One source line 15 and the other two adjacent pixels 17 are arranged along the source line 15 on both sides of the source line 15. In addition, the alignment electrodes 38 extend over the plurality of pixels arranged in the direction of the source line 15 and extend in the extension direction of the source line. Figure 12 is an enlarged view of a part of Figure 11. As shown in Figure 12, the area defined by the source line 15 and the gate line 16 is the long side of the direction in which the source line 15 extends, and the direction in which the gate line 16 extends is Pixels 1 7 with short rectangular sides. A thin film transistor 19 is provided near each intersection of the source line 15 and the gate line 16 and a pixel electrode 24 is connected to the drain electrode 22 of the thin film transistor 19. Also, look at two pixels 1 7 adjacent to a source line 15. That is, for example, in the four pixels in FIG. 2, the left pixel 1 7 a is the alignment electrode 3 8 on the left side of the pixel, and the right pixel 1 7 b is the alignment electrode 3 8. Located on the right side of the pixel, such as the two adjacent pixels 1 7 a and 17 b holding a source line 15, along the opposite sides of these pixels 17 Side of it. This liquid crystal display device is provided with an alignment electrode 3 8 formed of a conductor such as aluminum on the surface of the first substrate 25 as shown in FIG. The insulating film 39 formed by S i0 or S i Νχ and the like. The thin film transistor 19 of the reverse staggered type is formed on the insulating film 39 as in the first embodiment. The thin film transistor 19 is formed by superposing the gate electrode 21 on the alignment electrode 38. Configured and the cost paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) -21-(Please read the precautions on the back before filling this page) ▼ · I Μ ··· III · * · ΒΙΙ Μ ·· 言 线-Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 493098 A7 B7 V. Description of Invention (19). The configuration on the second substrate 26 side is the same as that of the first embodiment. A liquid crystal layer 41 is provided between the pair of substrates 25 and 26. (Please read the precautions on the back before filling in this page.) The liquid crystal display device in this embodiment is different from the first embodiment in that the alignment electrodes 38 and the gate lines 16 are individually set. Therefore, this alignment can be used. The electrode 38 is also used as a ground line, and a constant potential such as a ground potential is often applied. It is not ground potential, but it is also possible to apply a negative potential. In any case, a potential difference is generated between the pixel electrode 24 and the alignment electrode 3 8 as shown in FIG. 14 'is generated from the pixel electrode 24 and the pair The electric field E between the orientation electrodes 38 is pulled by the orientation electrode 38 arranged on the same substrate of the pixel electrode 24, and the electric field E is inclined toward the side of the orientation electrode 38. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, when looking at the two pixels 1 7 adjacent to each other with a source line 15 in mind, the position of the alignment electrode 38 in the pixel 17 is The directions of the inclination of the electric field E are opposite to each other. As shown by arrow E in FIG. 1, the liquid crystal molecules corresponding to the electric field E inclined in various directions will rise obliquely. Therefore, the asymmetrical contrast system that originates from the alignment direction of the liquid crystal is that the two pixels 1 7 adjacent to each other while holding a source line 15 are averaged. By virtue of the structure of the liquid crystal display device as a whole, Expand the viewing angle. Furthermore, the place where the disorder of the alignment occurs in this embodiment is the place along the source line 15 which does not affect the aperture ratio between the pixels 17 and the pixels 17 adjacent to each other. Where indicated by D in FIG. 14. Therefore, the liquid crystal display device according to this embodiment can also exhibit the effect of widening the viewing angle without reducing the aperture ratio. Next, a fifth embodiment of the present invention will be described with reference to Fig. 15. -22- This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 493098 A7 _ B7 V. Description of the invention (20) Figure 1 5 shows this implementation A plan view of the structure of the pixels of the liquid crystal display device. In the liquid crystal display device of this embodiment, the alignment electrode is provided separately from the gate line and the source line. Although the cross-sectional structure is the same as that of the fourth embodiment, the planar structure is different. In the fourth embodiment, the alignment electrodes are provided linearly, and in this embodiment, the alignment electrodes are arranged in a zigzag shape. Therefore, in FIG. 15, the same components as those in FIG. 12 are assigned the same reference numerals, and detailed descriptions thereof are omitted. In this liquid crystal display device, as shown in FIG. 15, the alignment electrode 40 is formed on a lower layer of the gate line 16 and a plurality of pixels 1 7 a are arranged along one source line 15 , 1 7 b is formed in a zigzag shape. Specifically, of the four pixels shown in FIG. 15, among the pixels on the left side 1 7 a and the pixels on the upper side, the alignment electrode 40 is a thin film transistor 1 that passes through the pixels. The gate electrode 2 of 9 is arranged below the source electrode 1 5 (source line on the left side of the pixel) connected to the thin film transistor 1 9. In the lower pixel, an alignment electrode is arranged. 40 is flexed on the top of this pixel. This time, it is arranged along the source line 15 of the thin film transistor 19 connected to the pixel on the right next to the pixel. The pixels 1 7 b on the right column are in a zigzag shape that is opposite to the left column. In the pixel on the upper side, the alignment electrode 40 is arranged along the source line 15 (the source line on the right side of the pixel) of the thin film transistor 19 connected to the right side of the pixel. In the picture element, the alignment electrode 40 is flexed on the upper side of the picture element, along the source line 15 (the source line on the left side of the picture element) of the thin film transistor 19 connected to the picture element. The size of this paper applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) · 23 · • n II β— ϋ I ϋ One δ, I ϋ I nn ϋ ϋ I (Please read the precautions on the back before (Fill in this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 493098 A7 — B7 V. Description of Invention (21). In other words, in the liquid crystal display device of this embodiment, the alignment electrode 40 is the two adjacent pixels 1 7 a and 1 7 b with one source line 15 and the other are opposite to each other along these pixels. Configure sideways. At the same time, the two pixels arranged along the source line direction 15 are also arranged along the opposite sides of these pixels. In this embodiment, as in the first to fourth embodiments described above, the directions of the inclination of the electric field in the two adjacent pixels are obviously opposite. The oblique direction of the liquid crystal molecules will also be reversed. Therefore, the asymmetric contrast caused by the alignment direction of the liquid crystal is averaged in the two adjacent pixels to produce the effect of expanding the viewing angle. In this embodiment, as in the first embodiment, the two pixels adjacent to each other along the source line 15 are not generated, and the two pixels arranged along the source line 15 direction are not generated. Effect, so the effect of expanding the overall viewing angle will be more significant. Furthermore, the phenomenon of misalignment in the source line 16 between the two pixels arranged along the source line 15 direction is also prevented from affecting the aperture ratio by providing a black mask. Therefore, the liquid crystal display device according to this embodiment can achieve the effect of widening the viewing angle without reducing the aperture ratio. In addition, the technical scope of the present invention is not limited to the above-mentioned embodiments', and various changes may be added without departing from the scope of the present invention. For example, in the above-mentioned first to fifth embodiments, the alignment electrode is formed on the same layer as the gate line or further below the gate line as an example. All the alignment electrodes are located on the pixel side. However, the alignment electrode of the present invention can be formed with pixels (please read the precautions on the back before filling out this page) -1_1 ϋ · ϋ 1 ϋ 1_1 I · ϋ 1 · n I speech line · This paper size applies to Chinese national standards (CNS) A4 specification (210 X 297 mm) -24-493098 A7 B7 V. Description of the invention (22) It is also possible to use the same layer of the electrode or the horizontal arrangement of the pixel electrode. Also in the above embodiment, the thin film transistor system is taken as an example of the inverse staggered type ', and this thin film transistor is also staggered type. Next, a sixth embodiment of the present invention will be described with reference to FIGS. 16 to 19. FIG. 16 is a plan view showing a pixel structure of the entire liquid crystal display device of this embodiment. FIG. 17 is an enlarged view. A cross-sectional view of a partially cut-off transistor, FIG. 19 is a cross-sectional view of a partially cut-out pixel electrode. The morphology of this embodiment is an example in which the thin film transistor is a reverse staggered type. FIG. 16 is a diagram for explaining the characteristic points of the liquid crystal display device of this embodiment. The liquid crystal display device of this example is provided with a plurality of source lines 1 15 (signal wiring) and a plurality of gates orthogonal to each other. Line 1 1 6 (scanning wiring), and the areas delimited by these wirings 1 1 5 and 1 1 6 are isolated two pixels 17a, 17b 'these two pixels 1 7 a, 1 7 b It is arranged in the direction of the source line. A thin film transistor (not shown in the figure) is provided near each intersection of the source line 1 1 5 ′ and the gate line 1 1 6, and the two isolated pixels adjacent to each other along the source line 115 1 1 In 7 a and 1 1 7 b, the gate lines 1 1 6 corresponding to these pixels are symmetrically arranged with the isolation line M between the pixels 1 1 7 a and 1 7 b as the center. FIG. 17 is an enlarged view of a part of FIG. 16. Use this figure to see the plane structure of this liquid crystal display device in detail, that is, the source line 1 1 5 and the gate line 1 1 6 are arranged at right angles to each other. By these wirings, the paper size applies the Chinese national standard (CNS ) A4 size (210 X 297 mm) .25 _ (Please read the precautions on the back before filling this page)

Printed by the Consumers 'Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed 493098 A7 _ B7 V. Description of the Invention (23) 1 1 5, 1 1 6 The areas delineated have become the two isolated The pixels are 1 1 7 a and 1 1 7 b. A thin film transistor 1 1 9 is provided near each intersection of the source line 1 1 5 and the gate line 1 1 6, and the thin film transistor 1 1 9 is extended from the source line 1 1 5 and the gate line 1 1 6 respectively. The source electrode 1 2 0 and the gate electrode 1 2 1. A pixel electrode 124 is connected to the drain electrode 1 2 2 of the thin film transistor 1 19 through a contact hole 12 3. Furthermore, the two pixels 1 17a and 1 17b adjacent to each other with the separation line M fixed on them are gazed. That is, for example, of the four pixels in FIG. 17, the left pixel 1 1 7 a is the gate line 1 1 6 on the left side of the pixel, and the right pixel 1 1 7 b is on the other hand. The gate lines 1 1 6 are arranged on the right side of the pixel. For example, the two gate lines 1 1 7 a and 1 1 7 b adjacent to each other along the isolation line M are along the respective lines. The opposite sides of each pixel 1 1 7 a and 1.1 7 b are arranged symmetrically. Fig. 18 shows a cross-sectional structure of the liquid crystal display device of this embodiment. As shown in FIG. 18, the liquid crystal display device is provided with a thin film transistor 119 and a pixel electrode 124 on the surface of the first substrate 125, and a color filter 1 on the surface of the second substrate 1 2 6 27. The cover 128, the counter electrode 129, and the liquid crystal layer 14 1 are disposed between the pair of the substrates 125 and 1 2 6. The liquid crystal used in this example is either a negative dielectric anisotropy or a positive dielectric anisotropy. The illustration of the alignment film is omitted here. In addition, a part of the thin film transistor 1 1 9 is on the first substrate ------------ # -------- ^ -------- -< Please read the notes on the back before filling this page) This paper size is applicable to Chinese National Standard (CNS) A4 (210 X 297 mm) -26-Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Cooperative 493098 A7 ___ B7 V. Description of the invention (24) The gate electrode 1 2 1 derived from the gate line 1 1 6 is formed, and the gate electrode 1 2 1 is formed to cover the gate electrode 1 2 1 by S i 0 or S i The gate insulating film 1 3 0 formed by Νχ and the like is located on the gate insulating film 1 3 0 above the gate electrode 1 2 1 and is provided with a semiconductor layer 13 made of amorphous silicon (a-Si) 1. On the semiconductor layer 13 1, an n + -type a-S i layer 1 3 2 is provided, on which a drain electrode 1 2 2 made of a conductor such as aluminum and a source line 1 1 are formed. 5 derives the source electrode 1 2 0. In addition, these drain electrodes 1 2 2 and source electrodes 1 2 0 are covered to form a passivation film 1 3 3 made of Si 102 or Si N ×, etc., and formed on the drain electrodes 1 2 2 at the same time. There are contact holes 1 2 3 passing through the passivation film 1 3 3, and a transparent conductive material such as I TO electrically connected to the drain electrode through the contact holes 1 2 3 is formed on the passivation film 1 3 3.成 之 pel pixel electrode 1 2 4. In the liquid crystal display device of this embodiment, liquid crystal molecules can be driven by applying an electric field between the pixel electrode 1 2 4 and the counter electrode 1 2 9 which oppose the liquid crystal layer 14 1. However, the normal pixel electrode 1 2 4 shows a potential of about 1 to 10 V. The gate line 1 1 6 shows a potential of about -6 V without applying a scanning voltage, so a large potential difference occurs between the pixel electrode 1 2 4 and the gate line 116. The result is shown in FIG. 19. The electric field E generated between the pixel electrode 1 2 4 and the counter electrode 1 2 9 is drawn by the gate line 1 1 6 provided on the same substrate. The electric field E is inclined at Gate line 1 1 6 side. At this time, the left-right direction in FIG. 19 is the short-side direction of the pixel electrode 1 24, so the electric field E is particularly easy to tilt. Scanning voltage applied to this paper is in accordance with China National Standard (CNS) A4 (210 X 297 mm) -27-• I n ϋ 1 ϋ n 1 ·--(nnn ϋ ϋ ϋ II (Please read first Note on the back, please fill out this page again) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 493098 A7 ____ B7 V. Description of the invention (25) Gate line 1 1 6 pixel electrodes 1 2 4 and gate line 1 1 6 The potential difference between them will be reduced, but the scanning voltage is applied in an instantaneous pulse shape, so it has no effect on the alignment direction of the liquid crystal. So for the two pixels 1 1 7 a, 1 When viewed at 17b, since the positions of the gate lines 1 16 provided in pixel 1 17 are symmetrical, that is, they are opposite to each other, the direction of the inclination of the electric field E will also be reversed. As shown in FIG. 16, arrows As shown in Figure E, the liquid crystal molecules corresponding to the electric field E tilted in all directions will rise obliquely. Two gate lines 1 1 6 and 1 16 are held and the two pixels facing each other and the electric field E also appears. The opposite direction, thus acting on the asymmetric contrast system that originates from the alignment direction of the liquid crystal, lies along the two sources The polar pixels 1 1 5 and the two pixels arranged 1 1 7 a and 1 1 7 b are averaged, and the viewing angle can be broadened as a whole by the structure of the liquid crystal display device. Furthermore, the liquid crystal of the present invention When displaying a device, there will not be an alignment disorder in the center of the pixel, as in the conventional liquid crystal display device provided with a fence electrode. Even if the alignment disorder occurs, it will only occur in the adjacent pixel 1 1 Places along the signal wiring between 7 a and 1 1 7 b (for example, the place indicated by reference numeral D in FIG. 19), but according to this place, the black cover 1 2 8 is usually provided in the liquid crystal display device. Therefore, the phenomenon of alignment disorder caused by the constitution of the present invention does not adversely affect the aperture ratio. Therefore, when the liquid crystal display device of the present invention has a wide aperture angle, the aperture ratio can be achieved without reducing the aperture ratio. In addition, the liquid crystal display device according to this embodiment does not require the special paper size to apply the Chinese National Standard (CNS) A4 specification (210 X 297 mm) _ 2 already _ ------- ------ # -------- Order --------- Line I (Please Read the notes on the back and fill in this page) 493098 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of Invention (26) The alignment electrode is provided, so the above effect can be obtained with a very simple wiring structure. A seventh embodiment of the present invention will be described with reference to FIG. 20 and FIG. 21. FIG. 20 is a plan view showing a pixel structure of the liquid crystal display device of this embodiment. FIG. 21 is cut by a pixel electrode portion Sectional view 〇 Regarding the liquid crystal display device of this embodiment, the structure of the first substrate side is exactly the same as that of the first embodiment, and only a window is provided on the counter electrode on the second substrate side and the sixth embodiment A little different. Therefore, in FIG. 20 and FIG. 21, the constituent elements common to FIG. 16 to FIG. 19 are given the same reference numerals, and detailed descriptions thereof are omitted. In the above-mentioned liquid crystal display device, from the potential difference between the pixel electrode and the counter electrode, or the pixel electrode and the alignment electrode, the relative positional relationship between these electrodes and the bending of the electric field will change, and the tilt of the liquid crystal molecules will Change too. Therefore, the tilt of the liquid crystal molecules can be adjusted to control the visual field dependency of the comparison. At this time, the amount of tilt of the liquid crystal molecules is not sufficient when the structure of the sixth embodiment is used alone. To increase the amount of tilt, the structure and order of the present embodiment are shown in FIG. 20 and FIG. 21. Element electrode 1 2 4 Among the opposite electrodes 1 2 9, the edge above the pixel electrode 1 2 4 and away from the gate line 1 1 6, that is, the window is formed in the part along the isolation line M 1 3 7 is fine. When such a window 1 3 7 is formed on the counter electrode 1 2 9, as shown in FIG. 2 1, it is away from the gate line 1 1 6 on the pixel electrode 1 2 4 (please read the note on the back first) Please fill in this page again for details)-* 1 ϋ · .1 nn «1« · ft · — · > 1 1 line · This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -29- 493098 A7 B7 V. Description of the invention (27) The upper part of the end part does not have the counter electrode 1 2 9 present. Therefore, the electric field E / generated between the pixel electrode 1 2 4 and the counter electrode 1 2 9 is more inclined when compared with the electric field when the window is not opened (the electric field E in FIG. 19). As described above, the window 1 3 7 is provided on the counter electrode 1 2 9. In addition, the size of the window 1 37 is optimized to change the tilt of the liquid crystal molecules, so that the viewing angle dependency of the contrast can be controlled. Furthermore, this example is an example in which windows are set between two pixels on the upper side and between two pixels on the lower side, as shown in FIG. However, such windows need not be separated, and a connection window is also possible. Furthermore, it is not necessary to provide the counter electrodes 1 2 9 for all of the plurality of pixels as shown in FIG. 20, and as shown in FIG. 22, the divided counter electrodes 1 2 9 a are provided for each pixel, It is also possible to cut a part of the isolation line along this divided counter electrode 1 2 9 a to make a window 1 3 7 a. The technical scope of the present invention is not limited to the above-mentioned embodiments, and various changes can be made without departing from the spirit of the present invention. For example, in all the above embodiments, the thin film transistor is an example of a reverse staggered type, but the thin film transistor may be a staggered type. (Effects of the Invention) As described in detail above, in the liquid crystal display device according to the present invention, in the pixels adjacent to each other by signal wiring, 'the alignment electrode is arranged along the signal wiring ground. The two sides of the signal wiring, so when looking at the two pixels, the electric field is tilted to the alignment electrode side, in other words, the electric field is tilted to the signal wiring side in the center of the two pixels, respectively. This paper scale is applicable to China Standard (CNS) A4 specification (210 X 297 mm) -30-(Please read the precautions on the back before filling out this page)-· mate I II · ϋ I i_i ϋ ϋ ϋ Μ / line · Intellectual Property Bureau of the Ministry of Economic Affairs Printed by an employee consumer cooperative. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs. Printed by an employee consumer cooperative. 493098 A7 _ B7 V. Description of the invention (28) The opposite direction. The liquid crystal molecules rise in response to an electric field tilted in all directions. The relationship between the inclination of the electric field in the two adjacent pixels is opposite because the signal wiring is not provided for the alignment electrode, and the two pixels are the same. As a result, the asymmetrical contrast due to the alignment direction of the liquid crystal, that is, the two pixels adjacent to each other while the signal wiring is held is averaged. As a result, the viewing angle of the liquid crystal display device as a whole can be increased. Furthermore, the liquid crystal display device of the present invention does not have the disorder of the alignment in the center of the pixel as in the conventional liquid crystal display device provided with a fence electrode. Even if the phenomenon of the alignment disorder occurs, it will only occur in the phase. Adjacent pixels are located along the signal wiring place, but according to this place, the black mask is usually provided in the liquid crystal display device. Therefore, the phenomenon of alignment disorder caused by the composition of the present invention is a measure of the aperture ratio. There will be no adverse effects. Therefore, the liquid crystal display device according to the present invention has the effect that a wide viewing angle can be achieved without reducing the aperture ratio. In the liquid crystal display device of the present invention, among the two pixels adjacent and isolated along the signal wiring, the scanning wiring corresponding to the two pixels is symmetrically arranged with the isolation line as the center. The electric field is inclined towards the opposite direction of the scanning wiring of each pixel, and the liquid crystal molecules will rise obliquely according to the electric field inclined in each direction. This is due to the asymmetry of the alignment direction of the liquid crystal. The contrast is that the two pixels adjacent to each other are averaged while holding the signal wiring. 'The viewing angle can be enlarged as a whole. Furthermore, there will be no conventional LCD display devices with fence electrodes (please read the precautions on the back before filling this page) • · mtmm imm IV 1 ϋ Mt ϋ mmmmm Mmam ϋ I ϋ l I · This paper size applies China National Standard (CNS) A4 Specification (210 X 297 mm) · 31-Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, printed by a cooperative 493098 A7 B7 V. Description of the invention (29) Oriented in the center of the pixel The disorder phenomenon, even if the alignment disorder phenomenon occurs, will only occur in the place along the signal wiring between adjacent pixels, but according to this place, the black mask is usually installed in the liquid crystal display device, so The phenomenon of alignment disorder caused by the constitution of the present invention does not adversely affect the aperture ratio. Therefore, the liquid crystal display device according to the present invention has the effect that a wide viewing angle can be achieved without reducing the aperture ratio. Furthermore, since it is not necessary to provide an alignment electrode, the above-mentioned effects can be obtained with a very simple wiring configuration. Brief Description of Drawings Fig. 1 is a plan view showing a schematic configuration of the entire pixels of a liquid crystal display device according to a first embodiment of the present invention. Fig. 2 is an enlarged view of a main part of the liquid crystal display device shown in Fig. 1. Figure 3 is a sectional view taken along the line I I I-I I I in Figure 2. Figure 4 is a sectional view taken along line N-N of Figure 2. Fig. 5 is a plan view showing an example of changing the position of the alignment electrode in the liquid crystal display device shown in Fig. 1; Fig. 6 is a plan view showing the structure of the entire pixels of a liquid crystal display device according to a second embodiment of the present invention. Figure 7 is a sectional view taken along the line VI I-VI I in Figure 6. Fig. 8 is a plan view showing the overall structure of a pixel of a liquid crystal display device according to a third embodiment of the present invention. 'Figure 9 is a sectional view taken along line I X-I X in Figure 8. (Please read the notes on the back before filling this page)

-· Ϋ ϋ ϋ I ϋ I ϋ ϋ ϋ ϋ ϋ ϋ I 1 ϋ I

This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -32- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 493098 A7 B7 V. Description of the invention (3〇) Figure 10 and Figure 8 The figure is a plan view of an example of changing the form of the alignment electrode in the liquid crystal display device according to the third embodiment of the present invention. Fig. 11 is a plan view showing a schematic configuration of the entire pixels of a liquid crystal display device according to a fourth embodiment of the present invention. Fig. 12 is an enlarged view of a main part of the liquid crystal display device shown in Fig. 11. Fig. 13 is a sectional view taken along the line XI I I-XI I I of Fig. 12 Fig. 14 is a sectional view taken along the line X I V-X I V of Fig. 12. Fig. 15 is a plan view showing the structure of a pixel of a liquid crystal display device according to a fifth embodiment of the present invention. Fig. 16 is a plan view showing a schematic configuration of the entire pixels of a liquid crystal display device according to a sixth embodiment of the present invention. Fig. 17 is an enlarged view of the main parts of the liquid crystal display device shown in Fig. 16. Fig. 18 is a sectional view taken along the line XVI I I-XVI I I in Fig. 17. Fig. 19 is a sectional view taken along the line X I X-X I X in Fig. 17. Fig. 20 is a plan view showing a pixel structure of a liquid crystal display device according to a seventh embodiment of the present invention. Figure 21 is a sectional view taken along line XX I-XX I in Figure 20. Fig. 22 is a plan view showing a configuration of a counter electrode in a liquid crystal display device according to a seventh embodiment of the present invention shown in Fig. 20; Figure 23 shows the conventional liquid crystal display device using fence electrodes --------------------- 1 ----- (Please read the (Please fill in this page again)

This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm) · 33-493098 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention () 31 Floor plan of pixel structure. Fig. 24 is a cross-sectional view taken along the line X X I V-X X I V in Fig. 23. Fig. 25 is a view showing the general viewing angle dependence of a liquid crystal display device in a τ N mode. [Explanation of component symbols] 20.1: Gate wiring (scanning wiring) 2 02: Source wiring (signal wiring) 2 03: Thin film transistor 2 0 4: Pixel electrode 2 05: Alignment electrode 2 〇6: Substrate 207: Insulating film 208: Liquid crystal layer 209: Substrate 2 1 0: Counter electrode 2 1 1: Window 1 5: Source line (signal wiring) 1 6: Gate line ( Scanning wiring) 1 7: Pixels. 1 8: Alignment electrode 19: Thin film transistor 20: Source electrode The paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) I ----- --- 4 · ------ 1T ------ (Please read the notes on the back before filling this page) -34-

Claims (1)

493098 A8 B8 C8 D8 VII. Patent application scope (please read the precautions on the back before filling this page) The alignment electrode that applies the electric field to the above liquid crystal layer is: along the above signal line and the above scanning wiring, the Z-shaped The two pixels adjacent to each other are arranged along each of the signal wirings, and are arranged along the signal wirings on both sides of the signal wirings in a manner capable of applying inclined electric fields in opposite directions to each other. Its characteristics _. 5. If the liquid crystal display device of the first or fourth item of the scope of patent application, the capacity electrode connected to the pixel electrode is opposed to the alignment electrode through an insulating film, and the capacity electrode and the insulation film are provided, The alignment electrode constitutes a storage capacity portion. 6. The liquid crystal display device according to item 1 or 4 of the scope of patent application, wherein the liquid crystal display device is disposed on the counter electrode on the substrate facing one of the substrates facing the other and is located along the counter electrode. The pixel is configured by providing a window at a peripheral edge portion on the side opposite to the side of the alignment electrode. 7 · A liquid crystal display device, characterized in that: a liquid crystal layer is provided between a pair of substrates, and a plurality of signal wirings and Multiple scanning wirings. The areas delineated by these wirings have become the two isolated pixels of the Ministry of Economic Affairs ’Smart Assets. Printed by the Consumer Bureau of the 4th Bureau. Films are set near the intersections of the signal wirings and scanning wirings. Among the two isolated pixels adjacent to each other along the signal wiring at the same time, the scanning wiring corresponding to each of the pixels is configured by aligning the isolated lines between the pixels. 8. The liquid crystal display device according to item 7 of the scope of patent application, wherein a window is provided on a portion of the counter electrode provided on the substrate opposite to the substrate on the other side along the isolation line. -36- This paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297 mm) 493098 A8 B8 C8 D8 申请, patent application scope 9 · If the liquid crystal display device of the patent application scope item 1 or 4 is in the opposite direction The opposite substrate is provided with an opposite electrode pair on the other substrate, and the internal element oblique drawing arranged on the side and the side electrode galvanic element is sufficient to generate electric power that can be applied to the field. Tell the match. The upper pole is installed with electrical equipment, and the pole is placed on the base. The electric equipment is installed on the base showing the liquid crystal plate on the display side. 7-The other fan plate niche is specially invited to apply as described above. ο The internal oblique drawing, which is scanned on the side-by-side and side-by-side formulas, can be described in detail in the oblique drawing. Upper pole and electrical installation (please read the precautions on the back before filling in. • Printed by the 4th Bureau of Consumer Affairs Cooperative of the Ministry of Economic Affairs. This paper is printed in accordance with the Chinese National Standard (CNS) A4 specification (210X297 mm) -37-